say it: SIG-nuh-chur
signature is a noun meaning "your name written in your own handwriting". It carries 5 recorded senses.
your name written in your own handwriting
a distinguishing style
“this room needs a woman's touch”
a melody used to identify a performer or a dance band or radio/tv program
the sharps or flats that follow the clef and indicate the key
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 signature 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.