to change somewhat the form or qualities of; alter partially; amend

to modify a contract.

Grammar . (of a word, phrase, or clause) to stand in a syntactically subordinate relation to (another word, phrase, or clause), usually with descriptive, limiting, or particularizing meaning; be a modifier. In a good man, good modifies man.

to be the modifier or attribute of.

to change (a vowel) by umlaut.

to reduce or lessen in degree or extent; moderate; soften

to modify one's demands.

to be or become modified.