| 1. | a thin, coarse mortar poured into various narrow cavities, as masonry joints or rock fissures, to fill them and consolidate the adjoining objects into a solid mass. |
| 2. | a coat of plaster for finishing a ceiling or interior wall. |
| 3. | Usually, grouts. lees; grounds. |
| 4. | Archaic.
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| 5. | to fill or consolidate with grout. |
| 6. | to use as grout. |