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Phrasal verb

check by

phrasal verb
/tʃek baɪ/

Meanings

phrasal verb

to verify or confirm something using a particular method, source, or reference

check by: to verify or confirm something using a particular method, source, or reference

Definition

To check by means to verify something by looking at or comparing it with a particular source.

To check by something means to confirm that information is correct using a specific method, document, or reference point. It often appears in instructions or explanations about how you verified a detail. You can check by asking someone, using an ID, looking at a list, or comparing with records.

Examples

  • I’ll check by email and let you know this afternoon.
  • Can you check by looking at the calendar on the wall?
  • She checked by calling the hotel directly before she booked.
  • They checked by comparing the two photos side by side.

Common mistake

Learners often omit the method after "check by" (wrong: "I checked by"), but it needs a source or action (e.g., "check by calling").