Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
greybeard is a noun meaning "a man who is very old". It carries 2 recorded senses.
a stoneware drinking jug with a long neck; decorated with a caricature of Cardinal Bellarmine (17th century)
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 greybeard come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.