How to Say "So Many" in Japanese

たくさん

takusan

The English phrase "so many" is translated into Japanese as たくさん (takusan).

たくさん is a common and versatile way to say "so many" or "a lot of" in Japanese.

Meaning: very numerous (adj)

Which one should you use?

While たくさん (takusan) is a common way to say 'many' or 'a lot', it is more colloquial and less formal than the word 数多くの (kazuōku no).

When used to modify a verb, the form たくさん can be used as an adverb without adding particles.

takusan

Japanese speakers often use the word いっぱい alongside a physical gesture of opening their arms wide to emphasize that something is 'so many'. This gesture reinforces the idea of a space being completely filled.
While たくさん describes a large quantity, Japanese has the word いっぱい (ippai) which literally means 'full'. In casual speech, these are often interchangeable, but いっぱい implies a container has reached its limit.
The word たくさん can be written with different kanji, such as 沢山, but in modern casual writing, it is very frequent to see it written entirely in hiragana to make the text feel softer.

たくさん用事があります。
I have so many things to do.
This sentence shows how to use たくさん to express having many tasks.
Tatoeba #9453658 by small_snow, translation #9178493 by CK
たくさん質問してごめんね。
Sorry for asking so many questions.
This sentence demonstrates using たくさん in the context of asking many questions.
Tatoeba #10193298 by small_snow, translation #10193143 by DJ_Saidez
とてもたくさんの人がいた。
There were so many people.
This sentence shows the use of たくさん when describing a large number of people.
Tatoeba #10560268 by bunbuku, translation #41136 by Swift
この会議には非常に多くの人々が参加しました。
A great number of people participated in this meeting.
そのプロジェクトには多数の労働者が必要です。
A large number of workers are required for that project.
公園にはたくさんの人々がいました。
There were a lot of people in the park.
昨日のコンサートはすごくたくさんの人が来ました！
There were so many people who came to yesterday's concert!
25 more sentences on Tatoeba

Hiyori and Kenta are looking at a photo album.

陽葵 Himari

写真がたくさんありますね。
Shashin ga takusan arimasu ne.
There are so many photos, aren't there?
健太 Kenta

はい、旅行の時の写真です。
Hai, ryoko no toki no shashin desu.
Yes, they are photos from my trip.
陽葵 Himari

たくさん行きましたね。
Takusan ikimashita ne.
You went to so many places.
健太 Kenta

本当に楽しかったです。
Honto ni tanoshikatta desu.
It was really fun.

Sources

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