almost;  nearly;  approximately
The wall was almost/nearly sixty meters high
He's almost/nearly eighty years old;  he's close on eighty
That software application cost approximately five thousand dollars;  that software application cost five thousand dollars or as near as dammit/as near as makes no difference
close;  narrow
They are close to each other in age, so they make friends with each other easily
To win by a narrow margin;  To be elected with a narrow majority
To gain/win a narrow victory;  To win by a narrow margin/by a hair's breadth/by a hair/by a whisker
To suffer a narrow defeat;  To lose by a small margin/by a hair/by a whisker