run in

Adjective

• Having been run in before or behind previous text.
• Having been run in to seat the parts.

Noun

• Alternate spelling of run-in

Verb

• To arrest.
• To use new machinery at less than full speed, preventing damage.
• To start a new regime slowly.
• To score (a try).
• To insert (a word, etc.) without making a line break or new paragraph (so that it is not free-hanging).
• To alter the position of matter to fill vacant space.
• Past of run in