Definition

1. Phrasal Verb:
   • To leave or depart, especially in a casual or informal manner: Used to tell someone, often a child, to go away or to indicate that one is leaving.
   • To extend or proceed along a path or boundary: To be situated or to move in a line following the course of something.

Usage

• As a command to leave (informal):
  • "Run along now, children. The adults need to talk."
  • "I'm busy. Run along and play outside."
• To describe following a path:
  • "A narrow trail runs along the edge of the cliff."
  • "The old railway line runs along the valley for miles."

Advanced Usage

• "to run along with": To agree with or go along with an idea or plan informally.
  • "I decided to run along with their suggestion for the time being."
• Used to describe infrastructure or natural features that follow a contour.
  • "The cable runs along the floor, so be careful not to trip."

Variants and Related Words

• Run (verb): To move at a speed faster than a walk.
• Along (preposition/adverb): Moving in a constant direction on or beside.
• Line (verb): To place or form a line along something. (Note: This is a related concept but a distinct word from the phrasal verb 'run along').

Synonyms

• Go away: To leave a place.
• Skedaddle: To depart quickly or hurriedly (informal).
• Follow: To go or come after or behind.
• Border: To form a boundary along.

Related Phrasal Verbs

• Run off: To leave quickly or suddenly.
  • "He ran off before I could ask him a question."
• Run by: To tell someone about an idea to get their opinion.
  • "Let me run that idea by my manager first."

Related Idioms

• Run along now: A set phrase used to dismiss someone gently, often a child.
  • "Run along now, and don't bother your father."
• Run its course: To continue until it finishes naturally.
  • "We can't stop the illness; it just has to run its course." (Note: This idiom uses 'run' but is conceptually distinct from 'run along').

Verb

1. be in line with; form a line along
   • trees line the riverbank