Tips:

• Pronounce the first letter “o” as the weak schwa vowel
  /ə/.
• Pronounce the second letter “o” as
  /ɑ/ and stress it.
• Stop-but-do-not-exlode the letter “t”—/t̚ /, which is followed immediately by the syllabic “n”—
  /n̩/, which by itself forms the third syllable, thereby making this word four syllables.
• Link the “n” into the final, or fourth, syllable [əs].