grease

Short definition from Wiktionary

Noun

1. 1
   Animal fat in a melted or soft state.
2. 2
   Any oily or fatty matter.
3. 3
   Shorn but not yet cleansed wool.
4. 4
   Inflammation of a horse's heels, also known as scratches or pastern dermatitis.
5. 5
   Money.

Verb

1. 1
   To put grease or fat on something, especially in order to lubricate.
2. 2
   To bribe.
3. 3
   To cause to go easily; to facilitate.
4. 4
   To perform a landing extraordinarily smoothly.
5. 5
   To extinguish the life of.
6. 6
   To have sexual intercourse with.
7. 7
   To cheat or cozen; to overreach.
8. 8
   To affect (a horse) with grease, the disease.
9. 9
   To depart or slip away.