哑 啞

    yǎ

    1. Nounmute; dumb; incapable of speech
    2. Adjectivehoarse; husky (of a voice)
    3. Bound formdud (bound form) (of a bullet, bomb etc)

    yā

    1. Onomatopoeiasound of cawing (onomatopoeia); sound of infant learning to talk
    2. Variant of 呀 ya ((particle equivalent to 啊 after a vowel, expressing surprise or doubt))