Definition from Wiktionary, the free dictionary
oiler (plural oilers)
- (nautical) An oil tanker
- An oil well
- A junior role in the engine room of a ship, senior only to a wiper, consisting mainly of keeping machinery lubricated.
- (firearms) A small (typically thumb-sized) metal container of oil, often containing an integral brush.
ship — see oil tanker
oil well — see oil well