What is the meaning of あご?

, , : a chin; a lower jaw; a meal; chit-chat, talk; alternate for 鮟鱇 (ankō, anglerfish)

: a gill; alternate for (agu, the barb on a hook)

: a lower jaw; a gill

: alternate for (agoe, the spur claw on animals such as chickens)

吾子: term of endearment for one's own child; you (compare English sweetie, dearie, love); I, me

網子: a netter: someone who helps haul in a fishing net

: a jaw

: talk; speaking the truth

: nod

飛魚: a flying fish

阿児: the town of Ago in Mie Prefecture, Japan

英虞: short for 英虞湾 (Agowan): Ago bay

Source: wiktionary.org