Prefixes

A prefix is a group of letters added before a word to change its meaning. For example, "relevant" means something significant or important. When "ir" is added as a prefix, the word becomes ir + relevant = irrelevant, which means insignificant or not important.

Prefixes

• inter
• ir
• un
• co
• mis
• anti
• hyper
• dis
• semi

Examples: irregular, dishonestly, unacceptable, hypertension, unavailable, irreversible, unanswerable, interschool, disinterest, cocurricular, semicircle, unable

Example: Human means suitable or fit for human beings. When "in" is added as a prefix, the new word becomes in + human = inhuman, which means cruel or not fit for human beings.