I. (v.)

(wholly) submersar, (partially) imersar;
plunjigar;
(flag, hat) salutar (per) (cf. reverencar).
dip down - inklinar; infre;
(in sulphur) sulfurizar;
(bathe) balnar.
dip up - evakuar; inklinar supre.
dip in the dish - peskar en plado.
dip into a subject - explorar.

II. (n.) plunjo;

(needle) inklino;
(hollow) kavajo, konkavajo.
to take a dip - balnar, natar.