Key

grava

(important)

nepra

(indispensable)

elĉifrigilo

(cryptography: piece of information used to encode or decode)

klarigilo

(small guide explaining symbols or terminology)

klavo

(button on a typewriter or computer keyboard)

klavo

(part of a piano or musical keyboard)

tonalo

(scale of musical notes)

ĉifroŝlosilo

(cryptography: piece of information used to encode or decode)

ŝlosilo

(device designed to open and close a lock)

ŝlosilo

(computing: field of a database constrained to be unique)