mean sea level

Questions

What does mean sea level mean?

The mean altitude of the ocean surface, averaged over all high and low tides at a particular location.

How to pronounce mean sea level

1. Open the pronunciation page — Open the Speakur entry for “mean sea level”.
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 “mean sea level”.
4. Repeat and practice — Say “mean sea level” aloud, matching stress and vowels until it feels natural.