terms |
straightest |
As a noun terms
is .
As an adjective straightest is
(
straight).
straightest |
upright |
As adjectives the difference between straightest and upright
is that
straightest is (
straight) while
upright is vertical; erect.
As an adverb upright is
in or into an upright position.
As a noun upright is
any vertical part of a structure, especially one of the goal posts in sports.