Yes, pump is playable
...and is worth 14 points.
Found in the following dictionaries
Enable (Words with friends)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
"Pump" Definition
noun
A machine or device for raising, compressing, or transferring fluids.
Physics Electromagnetic radiation used to raise atoms or molecules to a higher energy level.
Physiology A molecular mechanism for the active transport of ions or molecules across a cell membrane.
A device that raises, transfers, delivers, or compresses fluids or that attenuates gases especially by suction or pressure or both.
verb-transitive
Physics To raise (atoms or molecules) to a higher energy level by exposing them to electromagnetic radiation at a resonant frequency.
Physiology To transport (ions or molecules) against a concentration gradient by the expenditure of chemically stored energy.
To cause to move with the up-and-down motion of a pump handle: a bicyclist pumping the pedals.
To draw, deliver, or pour forth as if with a pump.
To propel, eject, or insert with or as if with a pump: pumped new life into the economy.
idiom
Pump iron Sports To lift weights.
phrasal-verb
Pump up Slang To fill with enthusiasm, strength, and energy: The lively debate really pumped us up.
Pump up Sports To be actively involved in a bodybuilding program: athletes pumping up at the gym.
Pump up To inflate with gas by means of a pump: pump up a tire.
verb-intransitive
Sports To fake a throw, pass, or shot by moving the arm or arms without releasing the ball.
To move up and down in the manner of a pump handle.
To raise or move gas or liquid with a pump.
We love the game of Scrabble®, which is why we created Free Scrabble Dictionary - a simple lookup tool to check if the word you want to play is valid in the game of Scrabble®. At the top of every page, you can enter your word and click "Search Dictionary." We'll let you know whether your word is playable and provide a few definitions as well.