大约/大概 dàyuē / dàgài
大约/大概（dàyuē / dàgài）means “about; approximately; roughly”. 大约 and 大概 mean "about/approximately," giving an estimate of a number, time, or situation. Formation: 大约/大概 + 数量/情况
about; approximately; roughly
HSK4Formation
大约/大概 + 数量/情况
Explanation
大约 and 大概 mean "about/approximately," giving an estimate of a number, time, or situation. They usually go before the quantity or the verb phrase being estimated.
Examples
现在 大约 八点。
xiànzài dàyuē bā diǎn.
It's about eight o'clock now.
他 大概 忘了。
tā dàgài wàng le.
He probably forgot.
Note
大概 can also mean "probably" (a guess), while 大约 mainly gives a numeric estimate.
FAQ
大约/大概 — what does it mean and how is it used?
about; approximately; roughly. 大约 and 大概 mean "about/approximately," giving an estimate of a number, time, or situation. They usually go before the quantity or the verb phrase being estimated.
大约/大概 — how do you form it?
大约/大概 + 数量/情况
大约/大概 — any usage notes?
大概 can also mean "probably" (a guess), while 大约 mainly gives a numeric estimate.