something that you say which means that time passes very quickly, often so quickly that you are surprised.

I can't believe your son is at university already. How time flies!

I never seem to manage to finish my work. The time just flies.

• about time
• About time too!
• about to
• about your person
• above all
• above all else
• above and beyond
• above and beyond something
• above and beyond the call of duty
• above suspicion
• above the fray
• above the law
• a brain box
• a brain drain
• a brain trust
• a breath of fresh air
• a bright spark
• a bright spot
• a broad church
• a Bronx cheer
• Absence makes the heart grow fonder.
• a bucks party
• a bully pulpit
• a bumpy ride
• a bum rap