SID
- 01 C1 Advanced
n.Stands for Standard Instrument Departure. It is a specific path a pilot must follow when taking off from an airport.
n.Abbreviation for Standard Instrument Departure. A published flight procedure followed by aircraft immediately after takeoff to ensure a smooth transition to the en route phase.
Simple“The pilot checked the SID for the airport to make sure he followed the correct path after takeoff.”
In context“Air traffic control cleared the flight for the OCKHAM SID, requiring the pilot to maintain a specific climb gradient until reaching the first waypoint.”
UsageUsually used with the definite article 'the' in aviation contexts.
Synonymsdeparture procedureAntonyms - 02 C2 Proficiency
n.Stands for Security Identifier. It is a unique code that a computer system uses to identify a user or a group.
n.Abbreviation for Security Identifier. A unique, variable-length character string used to identify a trustee, such as a user account or group, within a Windows environment.
Simple“The system administrator checked the user's SID to fix the permission error.”
In context“When a user account is deleted and recreated with the same name, it receives a new SID, preventing it from inheriting the old account's permissions.”
Synonyms - 03 C2 Proficiency
n.Stands for Sound Interface Device. It was a famous chip in old Commodore 64 computers that made unique electronic music.
n.Abbreviation for Sound Interface Device. A programmable sound generator chip used in the Commodore 64 and Commodore 128 home computers, noted for its distinctive synthesis capabilities.
Simple“Many modern musicians still use the SID chip to get that classic 8-bit sound.”
In context“The SID chip's three independent oscillators and multi-mode filter allowed for complex textures that were unprecedented in early 1980s home computing.”
Synonymssound chip - 04 C2 Proficiency
adv.A term used by doctors or vets meaning to take a medicine once every day.
adv.Abbreviation for 'semel in die'. A medical instruction indicating that a medication should be administered once daily.
Simple“The vet told me to give the cat her pill SID, so I do it every morning.”
In context“The prescription was marked SID, instructing the patient to take the dosage at the same time each evening to maintain consistent blood levels.”
UsageTypically written in lowercase (s.i.d.) on prescriptions, though often capitalized in clinical notes.
- 05 A2 Elementary
n.A short, friendly name for a man named Sidney or Siddhartha.
n.A hypocorism or diminutive form of the masculine given names Sidney, Siddhartha, or occasionally Sydney.
Simple“My neighbor Sid has lived in this street for over forty years.”
In context“Sid was a common nickname in mid-century Britain, though its popularity as a standalone name has fluctuated significantly since then.”
Synonymssidneysyd