Running

Running (noun): The action of running

Running (adjective): Cursive, flowing

Running (adverb): In succession

Merriam-Webster

Phrases containing “running:”

In the running

Running start

Running water

Running like clockwork

Running on fumes

Hit the ground running

Running around (1)

Running around like a chicken with its head cut off (2)

Barb

Barb (noun): a sharp projection near the end of an arrow, fishhook, or similar item, angled away from the main point so as to make extraction difficult. 

Merriam-Webster

Barbz (slang): the name of the fan base of Nicki Minaj

Barbie (doll): Needs no explanation

Barb (name): “Foreign woman