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N5Grammar, one piece at a time · Sep 17, 2026 · Updated Sep 27, 2026 · by Yuuki

A Lot in Japanese: たくさん vs いっぱい vs 多おおい

A lot in Japanese is たくさん or いっぱい: both mean "a lot" and both go before the verb. 多おおい also means "a lot," but it is an adjective that cannot sit in front of a noun: 多おおい人ひと is wrong, and 人ひとが多おおい is right. That restriction catches every learner at least once, because English has no equivalent of it.

Quantity is one of the first things you want to express and one of the first places Japanese refuses to behave like English. The words are easy; the rule about where 多おおい can stand is the part worth five minutes.

How do you say "a lot" in Japanese?

たくさん is the standard, neutral word for "a lot," and it's an adverb, so it goes before the verb: たくさん食たべました, "I ate a lot." To attach it to a noun directly you need の — たくさんの本ほん, "a lot of books" — though 本ほんがたくさんあります is more common in speech than putting たくさんの in front.

たくさん: the standard "a lot"

たくさん食たべました。 — I ate a lot. (polite) 本ほんがたくさんあります。 — There are a lot of books. (polite)

たくさん is an adverb, so it goes before the verb. To attach it to a noun directly, you need の: たくさんの本ほん ("a lot of books"). Both たくさんの本ほんがあります and 本ほんがたくさんあります are correct, and the second is more common in speech.

たくさん vs いっぱい: what's the difference?

Meaning, none — いっぱい means the same thing as たくさん but sounds more casual and more physical, coming from 一杯いっぱい, "one cupful." 今日きょうはいっぱい歩あるきました, "I walked a lot today." The set phrase お腹おなかいっぱいです ("I'm full," literally "stomach full") is the one to have ready after a meal, and it's a compliment, not a complaint.

いっぱい: the same, but warmer

いっぱい means the same thing and sounds more casual and more physical — it comes from 一杯いっぱい, "one cupful."

今日きょうはいっぱい歩あるきました。 — I walked a lot today. (casual-polite) お腹おなかいっぱいです。 — I'm full. (polite — the set phrase, literally "stomach full")

お腹おなかいっぱいです is the phrase to have ready after a meal in Japan, and it is a compliment rather than a complaint.

Why can't 多おおい go in front of a noun?

多おおい describes a quantity as a state, so it works as a predicate at the end of a sentence — 人ひとが多おおいです, "there are a lot of people" — but not as a modifier before a noun: 多おおい人ひと is wrong, reading as "a person who is many." To modify a noun, use 人ひとが多おおい店みせ (a relative clause), たくさんの人ひと, or the special form 多おおくの人ひと — the one worth memorizing, since it's the direct fix and common in writing.

多おおい: the adjective that cannot go in front

Here is the rule that matters.

人ひとが多おおいです。 — There are a lot of people. (polite — correct) 多おおい人ひとがいます。 — (wrong as "many people" — this reads as "a person who is many")

多おおい describes a quantity as a state, so it works as a predicate at the end of a sentence but not as a modifier before a noun. If you need to modify a noun, you have three options:

  • 人ひとが多おおい店みせ — a shop where the people are many (relative clause)
  • たくさんの人ひと — a lot of people (たくさん + の)
  • 多おおくの人ひと — many people (the special form 多おおく + の)

多おおくの is the one to memorize, because it is the fix for exactly this situation and it is very common in writing.

Does 少すくない have the same restriction as 多おおい?

Yes, identically — お客きゃくさんが少すくないです ("there are few customers") works, but 少すくない人ひと does not mean "few people." 多おおい and 少すくない are about how many there are, not which ones, and quantity adjectives in Japanese live at the end of the sentence. Ordinary adjectives like 高たかい, 新あたらしい and 大おおきい have no such restriction — only the quantity words do.

少すくない has the same restriction

The opposite of 多おおい behaves identically.

お客きゃくさんが少すくないです。 — There are few customers. (polite — correct) 少すくない人ひと — (does not mean "few people")

The pattern to remember: 多おおい and 少すくない are about how many there are, not about which ones. Adjectives that describe quantity in Japanese live at the end of the sentence. 高たかい, 新あたらしい and 大おおきい have no such restriction — 高たかい本ほん is perfectly fine — which is why this feels arbitrary until you see that it is specifically the quantity adjectives.

How do you say "very" in Japanese — degree, not quantity?

とても, すごく and かなり modify how much, not how many, and attach to adjectives rather than counting things: とても高たかいです ("it's very expensive"). とても is the neutral default for writing; すごく is spoken and more emotional; かなり sits between "fairly" and "quite." For small amounts, 少すこし and ちょっと mean the same thing, with 少すこし slightly more formal — and ちょっと does enormous social work beyond quantity, like softening a refusal.

とても, すごく, かなり: degree, not quantity

These modify how much, not how many, and they attach to adjectives rather than counting things.

とても高たかいです。 — It's very expensive. (polite, neutral) すごく高たかいです。 — It's really expensive. (casual-polite, more emphatic) かなり高たかいです。 — It's fairly expensive. (polite — less than すごく, more than a little)

とても is the neutral default and the one to use in writing. すごく is spoken and more emotional. かなり sits between "fairly" and "quite" and is useful precisely because it is honest about being a middling amount.

The small end: 少すこし, ちょっと, 少すこしだけ

少すこし話はなせます。 — I can speak a little. (polite, neutral) ちょっと待まってください。 — Please wait a moment. (polite — the most-used word in Japanese)

少すこし and ちょっと mean the same thing; 少すこし is slightly more formal. ちょっと also does an enormous amount of social work as a softener — ちょっと高たかいですね ("it's a bit expensive") and ちょっと… as a refusal are both ちょっと doing something other than measuring quantity.

What about an exact amount, or "too much of one thing"?

Often the natural Japanese is a number and a counter rather than a quantity word — 本ほんを三冊さんさつ買かいました, "I bought three books," with the counter going after the noun and no particle in between. For "a lot with an attitude," 〜ばかり means "nothing but, only this," and 〜だらけ means "covered in, full of" and is almost always negative: 間違まちがいだらけです, "it's full of mistakes."

Counting instead of quantifying

Often the natural Japanese is a number and a counter rather than a quantity word.

本ほんを三冊さんさつ買かいました。 — I bought three books. (polite)

Japanese reaches for exact counts more readily than English does, and the counter goes after the noun with no particle. If counters are still shaky, the six you actually need is the short version.

ばかり and だらけ: too much of one thing

Two words that mean "a lot" with an attitude attached.

  • 〜ばかり — nothing but, only this
  • 〜だらけ — covered in, full of (almost always negative)

漫画まんがばかり読よんでいます。 — I do nothing but read manga. (casual-polite, mild self-criticism) 間違まちがいだらけです。 — It's full of mistakes. (polite — definitely negative)

だらけ is strongly negative and attaches directly to a noun: 泥どろだらけ (covered in mud), 傷きずだらけ (covered in scratches). ばかり has its own set of uses, covered in 〜ばかり.

Common mistakes

  • Putting 多おおい in front of a noun. 多おおい人ひと is not "many people." Use 多おおくの人ひと or restructure as 人ひとが多おおい.
  • Putting 少すくない in front of a noun. Same rule. Restructure (客きゃくが少すくない店みせ), or use 少数しょうすうの for people and 少すこしの for amounts (少すこしの時間じかん).
  • Forgetting the の after たくさん. たくさん本ほん is not standard; it is たくさんの本ほん, or move it to たくさんあります.
  • Using とても with a verb. とても食たべました is odd. For verbs you want たくさん食たべました.
  • Treating いっぱい as always casual. お腹おなかいっぱいです is perfectly polite. The word is casual in register, not impolite.
  • Using だらけ for something positive. 花はなだらけ sounds like an infestation. For a pleasant abundance, use いっぱい.

The quantity toolkit

What you mean Word Where it goes
A lot (with a verb) たくさん / いっぱい Before the verb
A lot of + noun たくさんの / 多おおくの Before the noun
There are many 多おおい End of the sentence
There are few 少すくない End of the sentence
Very (with an adjective) とても / すごく / かなり Before the adjective
A little 少すこし / ちょっと Before the verb or adjective
An exact amount number + counter After the noun
Nothing but 〜ばかり After the noun or te-form
Covered in (negative) 〜だらけ After the noun

Practice

Questions 1 and 2 are the pair: the same meaning, and only one word order works.

1. Say "there are a lot of people," politely.

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人ひとが多おおいです。 — 多おおい goes at the end. It describes the quantity as a state.

2. Now say "many people" as a noun phrase, inside a longer sentence.

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多おおくの人ひと — 多おおい cannot modify a noun directly, so the special form 多おおく plus の does the job. たくさんの人ひと also works.

3. Say "I ate a lot," politely.

Show answer

たくさん食たべました。 — たくさん is an adverb, so it goes before the verb with no particle.

4. Say "I'm full" after a meal.

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お腹おなかいっぱいです。 — A set phrase, and a compliment rather than a complaint.

5. Say "it's very expensive," neutrally and politely.

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とても高たかいです。 — とても for degree with an adjective. すごく would be more emotional and more spoken.

6. Say "I can speak a little," politely.

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少すこし話はなせます。 — ちょっと話はなせます also works and sounds slightly more casual.

7. Say "I bought three books."

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本ほんを三冊さんさつ買かいました。 — The counter goes after the noun and its particle, with nothing in between.

8. Say "it's full of mistakes," politely.

Show answer

間違まちがいだらけです。 — だらけ attaches straight to the noun and is always negative.

9. Fix this: 多おおい人ひとがいます。(meaning "there are many people")

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人ひとが多おおいです。 — Or 多おおくの人ひとがいます. 多おおい cannot stand in front of a noun.

10. Fix this: とても食たべました。

Show answer

たくさん食たべました。 — とても modifies adjectives. For "a lot" with a verb you need たくさん or いっぱい.

Describing a crowded train with 人ひとが多おおい instead of 多おおい人ひと only sticks after you have said it a few times to someone who answers back, so a trial lesson is a good place to practise たくさん, いっぱい and 多おおい in whole sentences.

How anime characters say "a lot"

Food-focused anime gives たくさん and いっぱい endless screen time — a character eating たくさん食たべる or announcing お腹おなかいっぱいです — while the strict 多おおい noun rule this article teaches almost never appears in dialogue, because it sounds like a textbook, not a character.

In Food Wars!, characters constantly praise a dish by how much it lets them eat, and たくさん食たべました or お腹おなかいっぱいです capture that enthusiasm the way this article's examples do.

In One Piece, Luffy's appetite is a running joke built entirely on this vocabulary — たくさん食たべる — never the noun-modifying 多おおい this article warns against.

FAQ

Why can 高たかい go in front of a noun but 多おおい cannot? Because 多おおい describes the size of a set rather than a property of an individual. 高たかい本ほん picks out a book that is expensive; 多おおい本ほん would have to pick out a book that is numerous, which is not a thing a single book can be.

Is 多おおくの only for writing? It leans written and formal, but it is perfectly usable in speech. In casual conversation たくさんの or a restructured 〜が多おおい is more common.

What is the difference between たくさん and いっぱい? Meaning, none. Register: いっぱい is warmer and more casual, with a physical "filled up" feeling. たくさん is the neutral default and safer in writing.

Can I say とてもたくさん? Yes, though it is emphatic and slightly heavy. すごくたくさん is the more natural spoken version of the same idea.

Is ちょっと ever not about quantity? Constantly. ちょっと待まって ("hang on"), ちょっといいですか ("got a second?") and a trailing ちょっと… as a soft refusal are all social moves rather than measurements.

How do I say "too much"? 〜すぎる attached to the verb or adjective stem: 食たべすぎました ("I ate too much"), 高たかすぎます ("it's too expensive"). See 〜すぎる for the い you have to drop.

Vocabulary from this article

Tap the block to select all of it, then copy. In Anki: File → Import, note type Basic, separator Tab — the first column becomes the front, the second the back.

たくさん	たくさん — a lot
いっぱい	いっぱい — a lot, full
多い	おおい — many, numerous
多く	おおく — many (before の)
少ない	すくない — few
少し	すこし — a little
ちょっと	ちょっと — a little, a moment
とても	とても — very
すごく	すごく — really
かなり	かなり — fairly, quite
だらけ	だらけ — covered in (negative)
お腹	おなか — stomach
冊	さつ — counter for books
間違い	まちがい — mistake
泥	どろ — mud
漫画	まんが — manga
お客さん	おきゃくさん — customer, guest
歩く	あるく — to walk

I'm Yuuki, a Japanese teacher based in Tokyo. I've taught on italki as a Top 1% teacher and watched over 1,500 anime. 多おおい人ひと is a mistake almost everyone makes exactly once, usually while trying to describe a crowded train — and the fix, 人ひとが多おおい, is a sentence you then use every day.

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Sources: the author's own lessons and standard reference grammars.

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