in fields and gardens
a very common plant with thin leaves that covers the ground in fields and gardens and is often eaten by animals:
She enjoyed the feel of grass beneath her feet.
a blade of grass (=single leaf)
a particular kind of grass:
All grasses need light to grow well.
an area of grass, especially an area where the grass is kept cut short:
I walked across the grass.
Keep off the grass.
someone, usually a criminal, who gives information about other criminals to the police - used to show disapproval [= informer; = stoolpigeon AmE] ➔ supergrass
criminal[countable] British English informalSCC
used to say that other places or situations seem better than yours, although they may not really be better
to not waste time or delay starting something
to make someone leave their job because they are too old to do it effectively