- (UK) IPA (key): /ˈɒs.trɪt͡ʃ/ or /ˈɒs.trɪd͡ʒ/; enPR: ŏs'trĭch or ŏs'trĭj
- (US) IPA (key): /ˈɔs.trɪt͡ʃ/ or /ˈɑs.trɪt͡ʃ/ or /ˈɔs.trɪd͡ʒ/ or /ˈɑs.trɪd͡ʒ/; enPR: ôs'trĭch or ŏs'trĭch or ôs'trĭj or ŏs'trĭj
- (countable) An ostrich is a large bird that cannot fly.
- The ostrich can run up to speeds of 70 kilometres per hour.