adjective
bigger; -gest
large in size
large in number or amount
involving or including many people, things, etc.
always used before a noun
tending to do something more often than most people
feeling or showing a lot of excitement or enthusiasm
important or significant
always used before a noun informal - used to express strong dislike or disapproval
informal :older or more grown up
very popular
generous or kind
very strong, forceful, etc.
(as) big as life
big fish in a small/little pond
big on
informal :very enthusiastic about (something)
big with child
old-fashioned :pregnant and almost ready to give birth
too big for your britches
US or chiefly Brit too big for your boots
informal :too confident or proud of yourself
adverb
in a big way
in a way that is meant to impress people
go over big
informal :to be successful or well-liked
make it big
or hit it big or hit big
informal :to become very successful
think big
to think about doing things that involve a lot of people, money, effort, etc. :to think about doing big things
US