БИТЬ _|_ BEAT / BIT [bʲitʲ]    

Hint with an alternative definition: to beat, baste a butt of a bad buddy with a bat, bit of birch (rod) or batt, like in battle.

Hint with composition: «boo-boo» + be + to…

Hints with translation + consonant words (by sounds or letters): beetle-boxer beats a beet (as a punching bag) in a pit / to bite is like to beat with teeth

Mental visualization: Б (the guard raises a fist over…) + И (whip) + Т (prisoner — his hands to the sides and tied to a pillar) + ь (another whip — the whip is folded)

БИЕНИЕ _|_ BEATING, PULSE 

Hint: би (beat) + ение (bouncing, shining, running)