bañera
/baˈɲeɾa/ · B1 · noun · f
bathtub
🛁 baño (bath) + -era (holder, as in cafetera) = the thing that holds the bath
The suffix -era marks a container in Spanish: cafetera holds coffee, papelera holds paper. A bañera holds the baño. The other meanings follow the same idea of a tub-shaped hollow: a cockpit, or the bed of a dump truck.