A berth is a bunk on a train or a ship.
"train", probably.
swami
BUNK
bunk
the kids have a bunk bed.
Depending on context, "exercise" can mean train, apply, wield, exert, etude
Four letter words for hogwash are bunk, bull, hoax, jive, scam, sham, or yarn.
A five letter word for bravery is valor.
A five letter word for a game is "match."
Five letter word for tough:RigidStiffSolidDenseStoutTight
A five letter word for "irritate" is "annoy."
Scarf is a five letter word for muffler.