| Main Entry: | |
| Part of Speech: | verb |
| Definition: | sharpen |
| Synonyms: | abrade, file, give an edge to, gnash, grate, grit, polish, rub, sand, scrape, smooth, whet |
| Main Entry: | scour |
| Part of Speech: | verb |
| Definition: | clean, polish thoroughly |
| Synonyms: | abrade, brush, buff, burnish, cleanse, flush, furbish, mop, pumice, purge, rub, sand, scrub, wash, whiten |
| Antonyms: | dirty, rust |
| Main Entry: | smooth |
| Part of Speech: | verb |
| Definition: | make level |
| Synonyms: | burnish, clear, even, flatten, flush, glaze, gloss, grade, iron, lay, level, make uniform, perfect, plane, polish, press, refine, round, sand, sleek, slick, varnish |
| Antonyms: | coarsen, roughen, wrinkle |