Antibiotic is pronounced an-tee-by-OT-ik (IPA /ˌæntibaɪˈɑːtɪk/). Stress 'OT' in the fourth syllable — 'an-tee-by-OT-ik'.
IPA: /ˌæntibaɪˈɑːtɪk/
Syllables: an · tee · by · OT · ik
Common ESL mistake: Learners stress 'an' saying 'AN-tibiotic'.
Tip: Stress 'OT' in the fourth syllable — 'an-tee-by-OT-ik'.