To change somewhat the form or qualities of; to alter somewhat; as, to modify a contrivance adapted to some mechanical purpose; to modify the terms of a contract.
- To change in form or character; alter.
- To make less extreme, severe, or strong: refused to modify her stand on the issue.
- Grammar To qualify or limit the meaning of. For example, summer modifies day in the phrase a summer day.
- Linguistics To change (a vowel) by umlaut.
- To be or become modified; change.