One of the metal parts of an electrical plug is an example of a prong.
An example of a prong is one of two sections into which a river divides.
A pitchfork with four prongs.
The two prongs of a river.
Origin of prong
- Middle English pronge pointed instrument, pain from Medieval Latin pronga of Germanic origin
From American Heritage Dictionary of the English Language, 5th Edition
- From Middle English pronge, perhaps from Middle Low German prange (“stick, restraining device"), from prangen (“to press, pinch"), from Proto-Indo-European *(s)preng (“to wrap up, constrict"), akin to Lithuanian springstÃ¹ (“to choke, become choked or obstructed"), Latvian spraÃ±gÃ¢t (“cord, constrict"), Ancient Greek ÏƒÏ€Î±ÏÎ³Î±Î½ÏŒÏ‰ (sparganÃ³Å, “to swaddle"), ÏƒÏ€Î¬ÏÎ³Î±Î½Î¿Î½ (spÃ¡rganon, “swaddling cloth").