How to use the suffix -ous

Adding the suffix -ous

A suffix is a letter or a group of letters that can be added to a word to change its meaning.

  • Adding the suffix -ous turns a noun into an adjective. It means 'full of'.

'Dangerous' means 'full of danger'.

  • When you add -ous to a word ending with 'e', drop the 'e'.

'Adventure' becomes 'adventurous'.

  • When you add -ous to a word ending in 'y', replace the 'y' with 'i'.

'Fury' becomes 'furious'.

  • When you add -ous to a word that ends with 'our', 'our' becomes 'or', then add -ous.

'Humour' becomes 'humorous'.