codes
word · lemma: code
Definition
Codes are systems of words, numbers, letters, or symbols used to represent information, give instructions, or keep something secret. The word can also mean computer instructions or short number combinations like PIN codes.
Usage & Nuances
Usually plural when talking about several symbols, rules, or secret systems: 'dress codes', 'error codes', 'access codes'. In tech, 'code' often means programming, while 'codes' can mean separate programming systems or many short numerical/letter combinations. Don't confuse 'code' with 'password': a code is often shorter or more system-based.
Example Sentences
The door opens with two codes.
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Different offices have different dress codes, so it’s good to check first.
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These codes are hard to remember.
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The app sends new codes by email.
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I always mix up my login codes when I’m in a rush.
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The error codes didn’t tell us much, so we called support.
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