- IPA(key): /naʔiˈaʔeks/, [nɐ.ʔɪˈaː.ʔɛks]
- IPA(key): /naˈʔiaks/, [nɐˈʔiː.ɐks]
NAIAX
- (Philippines) Acronym of Ninoy Aquino International Airport Expressway.
(expressways of the Philippines) CALAX, CAVITEX, CCLEX, CLLEX, MCX, NAIAX, NLEX, SCTEX, SFEX, SLEX, TPLEX, Skyway