That depends on which word it is. G for Giant or Grand, L for large, J for jumbo.
What is the first letter of a five letter word meaning "pace"?
prime
The first letter of a five letter word meaning big incentive pay received by a salesperson is 'B' for the word bonus.
T
phony
L is for large.
l, the whole word is large
S for skull.
t for tempo
Tempo, or speed.
t for tempo
phony