(mathematics) The signum function.

plural of sign function

(medicine) A particular component of a patient's vital signs

(idiomatic, dated, mildly offensive) A curse causing loss of will power or persistent bad luck.

The Cyrillic letter Ъ/ъ, which in modern languages serves to denote a hard (non-palatalized) consonant.

The Cyrillic letter Ь/ь (transliterated in English with an apostrophe (’) or prime (′)), which in modern languages using the Cyrillic alphabet serves to denote a soft (palatized) consonant.

(medicine) A crunching, rasping sound, synchronous with the heartbeat, heard over the precordium in spontaneous mediastinal emphysema produced by the heart beating against air-filled tissues.

simple past tense and past participle of re-sign

Alternative form of V sign

An oval sign attached to the back of a road vehicle to show the nationality of the vehicle.