大约 (dàyuē)

大约 introduces an approximate number or time, signaling that the figure given is an estimate, not an exact amount.

Meanings

[adverb] Approximately; about; roughly (indicates an estimate, not an exact figure).

Example Sentences

从这里到车站大约需要二十分钟。 Cóng zhèlǐ dào chēzhàn dàyuē xūyào èrshí fēnzhōng. It takes approximately twenty minutes from here to the station.

这本书大约有三百页。 Zhè běn shū dàyuē yǒu sānbǎi yè. This book has about three hundred pages.

他大约下午五点到家。 Tā dàyuē xiàwǔ wǔ diǎn dào jiā. He arrives home at roughly five in the afternoon.

这个工程大约要花两年时间才能完成。 Zhège gōngchéng dàyuē yào huā liǎng nián shíjiān cái néng wánchéng. This project will take approximately two years to complete.

Collocations

Collocation	Meaning
大约需要	approximately requires
大约有	there are approximately
大约在	at approximately (a time or place)
大约花了	spent approximately

Usage Notes

大约 and 大概 are often interchangeable when expressing approximation, but 大概 can also express probability (大概是真的 = probably true), while 大约 is almost always used only for quantity and time estimates.

Memory Hook

大 means "big/general" and 约 means "approximately/to agree"; 大约 gives you the big-picture agreed-upon estimate, not the precise detail.