| Word | Definitions | Synonyms |
|---|---|---|
| propel | (verb) cause to move forward with force | Synonyms: impel |
| (verb) give an incentive for action | Synonyms: actuate, incite, motivate, move, prompt | |
| sapropel | (noun) sludge (rich in organic matter) that accumulates at the bottom of lakes or oceans | - |