By day Meaning in English
expression
Definition
'By day' means during the daytime, as opposed to at night. It is often used to describe activities or conditions that happen or exist in daylight hours.
Usage & Nuances
'By day' is somewhat formal or literary; it's often seen in descriptions ('a doctor by day, musician by night'), and less used in casual conversation. It's different from 'during the day' (which simply means any time in daylight). 'By day' often compares daytime and nighttime activities.
Example Sentences
Many animals hunt by day and sleep at night.
basic
The shop is open by day but closed at night.
basic
Some people work by day and study at night.
basic
He's a teacher by day, but a rock musician by night.
natural
The city looks peaceful by day, but it's full of life at night.
natural
The museum offers guided tours by day only.
natural