I wake up before breakfast.

At a time earlier than a specified point or event.
She brushes her teeth before school.
He exercises before dinner.
They read a book before bedtime.
before lunch
before work
before class
prior to
ahead of
in advance of
I will finish my homework before dinner.

At a time earlier than a specified point.
She arrived before the meeting started.
We need to leave before it gets dark.
He always wakes up before sunrise.
before noon
before the deadline
before long
prior to
ahead of
in advance of
The meeting will be held before lunch.

At a time earlier than a specified point or event.
She arrived before the guests.
We need to finish this before the deadline.
He called me before the event started.
before the event
before the meeting
before the deadline
prior to
ahead of
in advance of
I will finish my homework before dinner.

At a time earlier than a specified point.
She arrived before the meeting started.
Please wash your hands before eating.
He always wakes up before sunrise.
before noon
before long
before the end
prior to
ahead of
in advance of
The day before was very rainy.

The time or event that occurs earlier than another.
I arrived before noon.
She called me before dinner.
The meeting was scheduled before the holiday.
day before
week before
hour before
prior
earlier
preceding
I eat breakfast before I go to school.

At a time earlier than a specific point in time.
I wash my hands before dinner.
She studies before the exam.
We play outside before it gets dark.
before noon
before bedtime
before the meeting
prior to
ahead of
earlier than
Wash your hands before you eat.

Used to introduce a clause that indicates a time prior to another event.
Finish your homework before you go out.
Please call me before you leave.
Take a shower before you go to bed.
before dinner
before school
before the meeting
prior to
ahead of
in advance of