The science word "key" means important or critical.
key lime
because LOVE is they key to the five letter word HEART.......
Allen Key
key
key
okey dokey
modulate
kinky, kooky, Kentucky, kidney, key
key kid
Kin kit key
Yes, there are several one-word movie titles that start with the letter "A." Some examples include "Alien," "Avatar," "Amélie," "Argo," and "Annie." These titles are concise and impactful, often reflecting key themes or characters in the film.