can't

I can't reach the top shelf.

Definition

1. Contraction:
   • Negative form of "can": "can't" is the contracted form of "cannot," used to express the inability or impossibility of doing something.
   • Prohibition or refusal: It can also indicate that something is not allowed or that someone refuses to do something.
   • Strong disbelief: In informal speech, "can't" is used to express surprise or skepticism about a situation.

Usage Examples

• Inability:

  • I can't swim very well. (I am not able to swim proficiently.)
  • She can't attend the meeting because she is ill. (She is unable to be present due to sickness.)

• Prohibition:

  • You can't park here; it's a fire lane. (Parking is not permitted in this area.)
  • Children can't enter the building without an adult. (Entry is not allowed without supervision.)

• Refusal:

  • He can't accept the offer because he disagrees with the terms. (He refuses to accept due to disagreement.)
  • I can't lend you money right now. (I am unwilling or unable to provide financial assistance.)

• Disbelief:

  • That can't be true! (That is impossible or unbelievable.)
  • You can't have finished the whole cake already. (I find it hard to believe you consumed the entire cake.)

Advanced Usage

• "can't help": to be unable to avoid or control something.

  • I can't help laughing at his jokes. (I am unable to stop myself from laughing.)
  • She can't help feeling nervous before exams. (She cannot control her nervousness.)

• "can't stand": to strongly dislike or be unable to tolerate something.

  • I can't stand the heat in this room. (I find the heat unbearable.)

Variants and Related Words

• Cannot (verb phrase): the full form of "can't," meaning "is not able to" or "is not allowed to."

  • I cannot believe my eyes. (I am unable to believe what I see.)
  • You cannot enter without a ticket. (Entry is prohibited without a ticket.)

• Can (verb): the positive form, meaning "to be able to" or "to be allowed to."

  • I can speak French. (I have the ability to speak French.)
  • You can leave early today. (You are permitted to leave early.)

Synonyms

• Unable to: lacking the ability or means to do something.
• Not allowed to: not permitted or authorized.
• Impossible: not capable of occurring or being done.

Related Idioms

• Can't make heads or tails of something: to be unable to understand something.

  • I can't make heads or tails of this instruction manual. (I find it completely confusing.)

• Can't have your cake and eat it too: to be unable to have two desirable but incompatible things at once.

  • You can't work full-time and travel the world; you can't have your cake and eat it too. (You must choose one option.)

• Can't see the forest for the trees: to be unable to see the overall situation because you are focused on small details.

  • He is so worried about minor costs that he can't see the forest for the trees. (He overlooks the bigger picture.)