# couple (10-couple.com)

A couple means two of something, often two people in a romantic relationship. People also use it loosely to mean a small handful, like "a couple of minutes."

## What a model may hear
- key-value pair (programming and data structures): treat the input as a pair of related values to store or iterate over
- coupled system (physics and engineering): assume interacting variables or equations that must be solved together
- coupling coefficient (machine learning and statistics): apply regularization or measure dependence between features
- married pair in knowledge graph (natural language processing datasets): retrieve relationship facts about spouses or domestic partners

## Where people and models part ways
- Says: "I have a couple ideas"
  Means: I have two or three rough thoughts
  May be taken as: expects exactly two structured items in a list format
  Say instead: "I have a few ideas, maybe two or three"
- Says: "couple these files together"
  Means: put these files in the same folder or project
  May be taken as: attempts to create a tuple data structure or merge them as paired inputs
  Say instead: "group these files together in one folder"
- Says: "a couple of users complained"
  Means: a small number of users, maybe two or four
  May be taken as: filters for exactly two user records or expects a dataset with two entries
  Say instead: "a small number of users, about two to four"
- Says: "they make a great couple"
  Means: two people are good romantic partners
  May be taken as: searches for entities labeled as spouses in a knowledge base or generates relationship metadata
  Say instead: "those two people are good romantic partners"

## Tips
- Say 'about two' or 'two or three' if you do not mean exactly two
- Use 'pair' or 'tuple' when you want a model to handle two items as a unit
- Specify 'romantic couple' or 'married couple' to avoid data-structure interpretations
- Avoid 'couple with' in technical contexts; say 'combine with' or 'link to' instead
- If you mean a small unknown number, say 'a few' or 'several'

## Often confused with
- pair: always exactly two, often deliberately matched
- tuple: a fixed-length ordered set in programming, length may vary
- duo: two people working together, often performers
- brace: two of something, archaic or hunting usage
- several: more than two but not many, no upper bound implied
- doublet: a pair of related words or crystal structures, technical usage