What does "ult" mean?

The final (ultimate) syllable of a word.

What is a synonym for "ult"?

Common synonyms include: eventually, extreme, final, finally, greatest, in the end.

/ʌlt/ noun, verb, slang

noun, verb, slang ·Moderate ·College level

Noun

1
The final (ultimate) syllable of a word.
"Main stress falls on the antepenult, with secondary stress falling on the ult."
2
An ultimate; the most powerful ability available to a character. slang
"In addition to his healing and teleportion powers, Bard also has a unique ultimate ability, or ult. Ults are the most powerful moves each champion has—the one that takes the longest to unlock in a game, and is activated by pressing "R.""
3
One's ultimately favorite group or member, i.e. a preference which is never expected to change.

Verb

Adjective

"Main stress falls on the antepenult, with secondary stress falling on the ult."

Clipping of ultimate.