Dictionary

SID en · ADV

Pronunciation

• /ɛs aɪ diː/

Meanings

1. (not-comparable) once a day, such as for the administration of medication. From Latin semel in die.

SID en · NOUN

Pronunciation

• /ɛs aɪ diː/

Meanings

1. (abbreviation, alt-of, qualifier:Microsoft Windows) Abbreviation of security identifier.
   alt of security identifier
   • If the call to this function fails, you can assume the SID was invalid — even if it's a well-known SID. 2003, John Mueller, .NET development security solutions:
2. Sound Interface Device, a sound chip used in some early computers.
3. (abbreviation, alt-of, initialism) Initialism of standard instrument departure.
   alt of standard instrument departure

Forms