In Objective-C, functions are called using messages, a feature inspired by the SmallTalk programming language. Messages look like "blocks" of code similar to the one shown below:
ɪ n WORD_BOUNDARY ɑ b d̠ʒ ɛ k t ɪ v s iː WORD_BOUNDARY f ʌ ŋ k ʃ ə n z WORD_BOUNDARY ɑ ɹ WORD_BOUNDARY k ɔ l d WORD_BOUNDARY j uː z ɪ ŋ WORD_BOUNDARY m ɛ s ɪ d̠ʒ ɪ z WORD_BOUNDARY ʌ WORD_BOUNDARY f iː t̠ʃ ə ɹ ɹ WORD_BOUNDARY ɪ n s p aɪ ə ɹ d WORD_BOUNDARY b aɪ WORD_BOUNDARY ð ə WORD_BOUNDARY s m ɔ l WORD_BOUNDARY t ɔ k WORD_BOUNDARY p ɹ oʊ ɡ ɹ æ m ɪ ŋ WORD_BOUNDARY l æ ŋ ɡ w ɪ d̠ʒ WORD_BOUNDARY m ɛ s ɪ d̠ʒ ɪ z WORD_BOUNDARY l ʊ k WORD_BOUNDARY l aɪ k WORD_BOUNDARY b l ɑ k s WORD_BOUNDARY ʌ v WORD_BOUNDARY k oʊ d WORD_BOUNDARY s ɪ m ɪ l ə ɹ WORD_BOUNDARY t ə WORD_BOUNDARY ð ə WORD_BOUNDARY w ʌ n WORD_BOUNDARY ʃ oʊ n WORD_BOUNDARY b ɪ l oʊ WORD_BOUNDARY