Englishfor English speakers
immediately
Adverb
—
If you do something immediately, you do it with no time or space between.
One car went by, immediately followed by a second at high speed.
Young man, I want this room cleaned up right now--immediately! Do you understand me?
immediately
Preposition
—
right after; as soon as
Miss Mei-Ling will be arriving here at twelve forty-five. Let me know immediately she does.
usable
Adjective
—
If something is usable, then it can be used.