id

Everyday

1. ID (usually written in capitals) is short for identification: a card or document that shows who you are, like a passport or student card. tree →
2. An ID can be a number or name that identifies something, like a user ID or a product ID. tree →
3. In psychology, the id is the part of the mind with basic wishes and instincts. tree →
4. In old books and notes, Id. is short for idem, meaning "the same", used to point back to the work just named. tree →

In the lessons

In everyday life and safety: adults show ID to travel, at banks or to prove their age; children may have school ID badges; in online safety, never share your ID details, passwords or ID numbers with strangers. In computing lessons, each user or record has an ID. Phrases: photo ID, show your ID, ID card, user ID.

Examples

• You need photo ID to get on the plane. tree →
• The visitors wore ID badges at school. tree →
• Please type your user ID and password. tree →
• Never share your ID details with strangers online. tree →
• The police checked the man's ID. tree →
• Each book in the library has an ID number. tree →

Note

Usually written «ID» in capitals and pronounced as two letters, «eye-dee». «To ID someone» (informal) means to identify them. Do not confuse with «I'd» (I would / I had). The psychology word «id» is written in lower case.

In Jewish tradition

Interpretation: Here "Id est" is Latin for "that is." It appears in old scholarly notes about Sefer Yetzirah. In the primary lessons: In everyday life and safety: adults show ID to travel, at banks or to prove their age; children may have school ID badges; in online safety, never share your ID details, passwords or ID numbers with strangers. In computing lessons, each user or record has an ID. Phrases: photo ID, show your ID, ID card, user ID.

Examples

• 29) Id est, made it the reigning power. (Sefer Yetzirah, Kalisch 1877) tree →
• "Id est Liber Jezirah, qui Abrahamos, Patriarchæ adscribitur, unacum Commentario Rabi Abraham F.D. super 32 semitis Sapientiæ, a quibus Liber Jezirah incipit: Translatus et notis illustratus a Joanne Stephano Rittangelio Ling. (Sefer Yetzirah, Westcott 1893) tree →
• 5') Quoted from CJ iD"l CIIE by L. (Mordell, The Origin of Letters and Numerals according to Sefer Yetzirah (1914)) tree →

Note

Usually written «ID» in capitals and pronounced as two letters, «eye-dee». «To ID someone» (informal) means to identify them. Do not confuse with «I'd» (I would / I had). The psychology word «id» is written in lower case.