Translation guide
Expressing a large number or quantity in Japanese. The most common and versatile way is たくさん (takusan). For formal or written contexts, 多数 (tasū) is used. 大量 (tairyō) emphasizes a large volume or mass. 数多く (kazuōku) is often used attributively. おおぜい (ōzei) is specifically for large numbers of people.
a large number of books
a large number of people
a large amount of data
Expressing that there is a large number or amount of something in a general sense.
The most common and versatile word for 'a lot' or 'many'. Can be used as an adverb, adjective, or noun. Suitable for both spoken and written Japanese.
There are a lot of people in the park.
Formal word for 'a large number'. Often used in news, reports, and official contexts. Can be used as a noun or adverbially with の.
Literally 'many in number'. Often used attributively (数多くの + noun) to mean 'numerous' or 'a large number of'. Slightly formal.
Emphasizing a large quantity in terms of volume, mass, or bulk, often for objects, substances, or data.
Specifically referring to a large number of people.
Expressing that the number is so large it cannot be counted.
Means 'countless' or 'innumerable'. Used for abstract or concrete things that are too many to count.
Both mean 'many' or 'a lot', but 多い is an adjective (多い人 = many people), while たくさん is an adverb/noun (人がたくさんいる = there are many people). 多い cannot directly modify verbs; use たくさん instead.
There are many people.
A large number of students participated in the event.
I read many books.
多数の参加者が集まりました。
A large number of participants gathered.
There are numerous problems.
Means 'large quantity' or 'massive amount'. Used for physical objects, substances, data, etc. Often implies a sense of scale or bulk.
A large amount of garbage was produced.
Process a large volume of data.
Similar to 大量 but slightly more formal and less common. Often used in technical or scientific contexts.
Please consume a large amount of fluids.
Means 'many people' or 'a crowd'. Used only for people. Common in spoken Japanese.
There were many people at the station.
Kanji form of おおぜい, but can also be read as たいせい in formal contexts. Means 'large crowd' or 'many people'.
A large crowd of spectators gathered.
Countless stars can be seen in the sky.
Literally 'cannot finish counting'. A common phrase meaning 'countless' or 'too many to count'.
I have countless memories.
人がたくさんいる。
There are many people.
While 多い人 is grammatically correct, it's more natural to say たくさんの人 or 人が多い. Using 多い directly before a noun can sound awkward in some contexts.
many people (grammatically correct but less natural)
many people (more natural)
テーブルの上にりんごがたくさんありました。
There were a lot of apples on the table.
A massive amount of water was used.