Wheelchairs are used by people for whom walking is difficult or impossible due to illness, injury, or disability.
wˈiːltʃɛɹz ɑːɹ jˈuːzd baɪ pˈiːpəl fɔːɹ hˈuːm wˈɔːkɪŋ ɪz dˈɪfɪkəlt ɔːɹ ɪmpˈɑːsᵻbəl dˈuː tʊ ˈɪlnəs, ˈɪndʒɚɹi, ɔːɹ dˌɪsɐbˈɪləɾi.