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ph JUST WRITTEN FOR YOU

/fɪ/ · ph
noun
  1. A photometric unit of illuminance, or luminous flux through an area. The lamp's luminosity was measured in units of ph.
adverb
  1. In the way it sounds, particularly: written to describe the sound rather than the dictionary spelling. The hard words in the passage have been spelled phonetically.
Did you know? The word 'ph' is often used in scientific contexts to describe the measurement of light intensity.
Written by Lexi Wordsworth, Dictionary Editor 0 lookups Added Jul 15, 2026