bánh răng

== Vietnamese == === Etymology === bánh (“wheel”) +‎ răng (“tooth”). === Pronunciation === (Hà Nội) IPA(key): [ʔɓajŋ̟˧˦ zaŋ˧˧] (Huế) IPA(key): [ʔɓɛɲ˦˧˥ ʐaŋ˧˧] (Saigon) IPA(key): [ʔɓan˦˥ ɹaŋ˧˧] === Noun === (classifier cái, chiếc) bánh răng a gear wheel; a cog