Definition

1. Verb (intransitive):
   • To approach someone or something stealthily and without being noticed: The action of moving quietly and carefully towards a target to avoid detection, often with the intent to surprise.
   • To happen or develop gradually and without being immediately apparent: Used figuratively to describe something, often an abstract concept like age or a problem, that approaches or affects someone in a subtle, incremental way.

Usage and Examples

• Literal Usage (to approach stealthily):

  • The cat tried to sneak up on the bird. (The cat attempted to approach the bird quietly and unseen.)
  • Don't sneak up on me like that! You scared me. (A request not to approach so stealthily because it caused a fright.)

• Figurative Usage (to develop gradually):

  • You have to save money because retirement will sneak up on you. (Retirement approaches gradually before you fully realize it.)
  • I didn't realize how late it was; the evening just sneaked up on us. (The late hour arrived without us noticing the passage of time.)

Advanced Usage and Patterns

• "sneak up on [someone/something]": The most common structure, requiring an object (a person, a feeling, a deadline).

  • The deadline for the project sneaked up on the team.
  • A feeling of dread sneaked up on her as she entered the old house.

• "sneak up from behind": Specifies the direction of the stealthy approach.

  • The defender managed to sneak up from behind and steal the ball.

Variants and Related Words

• Sneak (verb): To move or go in a secret, stealthy way.
  • He sneaked out of the house after midnight.
• Sneaky (adjective): Behaving in a secret and sometimes dishonest or unpleasant way.
  • That was a sneaky trick to play.
• Creep up (phrasal verb): A very close synonym, often used interchangeably, especially in the figurative sense.
  • Prices have crept up over the last year.

Synonyms

• Creep up on: To approach slowly and carefully.
• Steal up on: To approach very quietly and secretly (less common).
• Approach stealthily: A more formal description of the action.

Related Phrasal Verbs

• Sneak in/into: To enter a place quietly or secretly.
  • We managed to sneak into the concert without tickets.
• Sneak out: To leave a place quietly or secretly.
  • The children sneaked out of their room after bedtime.
• Sneak around: To move about in a secretive, often suspicious, manner.
  • Why are you sneaking around the office?

Related Idioms

• Sneak attack: A sudden, surprise attack made after a stealthy approach.
  • The video game character is vulnerable to sneak attacks from behind.
• Sneak peek: A secret or early look at something before it is officially shown or available.
  • The director gave us a sneak peek at the new movie set.

Verb

1. advance stealthily or unnoticed
   • Age creeps up on you