bench vs penalty box

bench and penalty box both are nouns.

Word	Noun	Adjective	Verb	Adverb
bench	Yes	No	Yes	No
penalty box	Yes	No	No	No

As nouns, penalty box is a hyponym of bench; that is, penalty box is a word with a more specific, narrower meaning than bench:

bench: a long seat for more than one person
penalty box: (ice hockey) an enclosed bench to the side of an ice-hockey rink for players who are serving time penalties

Other hyponyms of bench include banquette, flat bench, park bench, church bench, pew, prie-dieu, settee, settle, window seat.

bench (noun)	penalty box (noun)
a long seat for more than one person	(ice hockey) an enclosed bench to the side of an ice-hockey rink for players who are serving time penalties
a strong worktable for a carpenter or mechanic
(law) the seat for judges in a courtroom
persons who administer justice
the reserve players on a team
a level shelf of land interrupting a declivity (with steep slopes above and below)

bench (verb)	penalty box (verb)
To lift a weight using a bench press
To exercise using a bench press
exhibit on a bench
take out of a game; of players