o.s.

Questions

What does o.s. mean?

Initialism of old series.

How to pronounce o.s.

1. Open the pronunciation page — Open the Speakur entry for “o.s.”.
2. Read the phonetic spelling — Read the IPA spelling () so you know which sounds to aim for.
3. Play the audio — Click Play to hear reference audio for “o.s.”.
4. Repeat and practice — Say “o.s.” aloud, matching stress and vowels until it feels natural.