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say it: hahr-MAH-nik
UncommonadjectivenounThe AltF Lexicon word of the day for Thursday, 15 January 2026 is harmonic — an adjective and noun meaning "of or relating to harmony as distinct from melody and rhythm". It is said har-mo-nic, stressed on "mo".
of or relating to harmony as distinct from melody and rhythm
“subtleties of harmonic change and tonality”
harmonic carries 7 recorded senses in total. Open the full entry to read them all, grouped by part of speech and each with its own synonyms, antonyms and broader and narrower terms.
3 syllables, with the beat on "mo" — har-mo-nic. The transcription /hɑɹˈmɑnɪk/ comes from the CMU Pronouncing Dictionary.
It carries 7 senses, spread across 2 parts of speech (adjective and noun) — against a corpus average of 1.4 an entry. The meaning you already know is usually not the only one.
Its first sense is filed in WordNet's relational adjective file, for adjectives that mean “of or pertaining to” some noun, which is where the relations below come from rather than from any editorial judgement of ours.
Commonness band 2 of 5 — Uncommon. Turns up in careful writing rather than conversation. 31,297 of the 147,478 entries share that band, measured against a corpus of everyday English rather than assigned by an editor.
Every sentence above is derived from the entry’s stored record. Nothing here is a story about where the word came from, because the corpus does not carry etymology and a plausible invented one would be the only unverifiable claim on the page.
Thursday, 15 January 2026 is day 15 of its year, and slot 15 of the 366-word rotation holds harmonic. The mapping is arithmetic on the date and nothing else, so this page said the same thing a year ago and will say it a year from now, and every other day in the archive resolves the same way. How the rotation works, in full.
Definitions, examples and semantic relations 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.