of considerable size or extent
her big hazel eyes
big buildings
big staff cuts
of considerable importance or seriousness
it's a big decision
his biggest problem is money
he made a big mistake
generous
‘I'm inclined to take pity on you.’ ‘That's big of you!’
the major league in a professional sport
the day he made it to the bigs, he forgot every minor league ballpark he ever played in
praise or recommend something highly
the record's been on the streets a while now, but it's still worth bigging up