American English

Definition of instruction noun from the Oxford Advanced American Dictionary



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  1. 1instructions [plural] detailed information on how to do or use something synonym direction Follow the instructions on the packet carefully. Always read the instructions before you start. instruction on how to do something The plant comes with full instructions on how to care for it.
  2. 2[countable, usually plural] instruction (to do something) instruction (that…) something that someone tells you to do synonym order to ignore/carry out someone's instructions I'm under instructions to keep my speech short. He phoned you on my instructions. He left strict instructions that the box should only be opened after his death.
  3. 3[countable] a piece of information that tells a computer to perform a particular operation.
  4. 4[uncountable] instruction (in something) (formal) the act of teaching something to someone religious instruction
See the Oxford Advanced Learner's Dictionary entry: instruction

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