of an extent, amount, or intensity considerably above average

the article was of great interest

she showed great potential as an actor

a great crowd thronged the marketplace

of ability, quality, or eminence considerably above average

the great Italian conductor

great art has the power to change lives

used before a noun to emphasize a particular description of someone or something

I was a great fan of Hank's

her great friend Joe

(in names of family relationships) denoting one degree further removed upwards or downwards

great-aunt

great-great-grandfather

(of two people) on very close or intimate terms

one of the boys was very great with her

an important or distinguished person

the Beatles, Bob Dylan, all the greats

the lives of the great, including Churchill and Newton

very well; excellently

we played awful, they played great