CEFR A2

ob

prefix

Meaning

A prefix used in English, derived from Latin, that often means 'against,' 'in front of,' 'toward,' 'on,' 'over,' or 'down.' It is frequently used to form new words, often changing the form of the root word it attaches to (e.g., 'occur' from 'ob-' + 'currere').

Examples

  • The prefix 'ob-' is commonly found in words like 'object,' 'obstacle,' and 'observe.'
  • Many English words begin with 'ob-' to indicate opposition or direction.