a big fish

school (of fish)

a fish whose popular appellation changes depending on its maturity

(literally) a boat-swallowing fish / (figuratively) a colossal fish / (figuratively) a larger-than-life character/individual

fish species eaten in place of another species

carnivorous fish

Reeves' shad

to use / to employ / to make use of, to apply / to spend

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend