Definition

1. Noun:
   • A person who temporarily substitutes for another: A "fill-in" is someone who performs a role or job when the regular person is absent, often in work, performance, or other scheduled activities.
   • A brief summary providing essential information: In informal American English, a "fill-in" can be a concise update or briefing that gives someone the necessary details about a situation.

Usage

• The word "fill-in" is used as a countable noun. It is often hyphenated.
• It is commonly used in professional, casual, and performance-related contexts to describe a temporary replacement.
• In its informational sense, it is typically used in phrases like "give me a fill-in" or "need a quick fill-in."

Examples

• As a substitute person:
  • The teacher was sick, so they hired a fill-in for the week.
  • I'm just a fill-in for the regular secretary while she's on vacation.
• As a summary or briefing:
  • Can you give me a quick fill-in on what happened in the meeting?
  • I missed the first half of the lecture; I'll need a fill-in later.

Advanced Usage

• "To fill in for someone" (Phrasal Verb): This is the related verbal action from which the noun is derived. It means to act as a substitute.
  • Sarah will fill in for the manager during his absence.
• Contextual Nuance: The term often implies a short-term, temporary, and sometimes less formal arrangement compared to a permanent "replacement" or "substitute."

Variants and Related Words

• Fill-in (adj.): Used attributively to describe something that serves as a temporary substitute.
  • She took a fill-in job at the cafe.
• Stand-in (n.): A very close synonym, especially common in performance contexts (e.g., film, theater).
• Substitute (n.): A more general term for a person or thing acting in place of another.

Synonyms

• Substitute: A person or thing that takes the place of another.
• Replacement: Someone or something that replaces another.
• Stand-in: A person who substitutes for an actor in dangerous scenes or during preparation.
• Proxy: A person authorized to act on behalf of another.
• Briefing: A meeting for giving information or instructions (related to the informational sense).

Related Phrasal Verbs

• Fill in (for someone): To temporarily do someone else's job or duties.
  • Could you fill in for me at the reception desk tomorrow?
• Fill in (on something): To provide someone with information about something they have missed.
  • Please fill me in on the details of the project.

Related Idioms

• Fill someone's shoes: To take over someone's role or responsibilities, often implying a challenging task.
  • It's hard to fill in for someone as experienced as her; you really have to fill her shoes.
• Stopgap: A temporary solution or measure. A "fill-in" can be a person serving as a stopgap.
  • The new hire is just a stopgap until we find a permanent manager.

Noun

1. someone who takes the place of another (as when things get dangerous or difficult)
   • the star had a stand-in for dangerous scenes
   • we need extra employees for summer fill-ins