underrunner

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Noun

1. The lower of a pair of grinding [[millstone]]s.
2. An additional [[runner]] added to the bottom of a [[sledge]] to protect the main runners in harsh conditions.
3. A [[runner]] {{gloss|mechanical part intended to guide or aid something else to move}} designed to be inserted underneath the item to be moved.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.