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say it: WAYV-length
wavelength is a noun meaning "the distance (measured in the direction of propagation) between two points in the same phase in consecutive cycles of a wave". It is pronounced /ˈweɪvˌlɛŋθ/ — WAYV-length. It carries 2 recorded senses.
the distance (measured in the direction of propagation) between two points in the same phase in consecutive cycles of a wave
a shared orientation leading to mutual understanding
“they are on the same wavelength”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for wavelength come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.