ment
ment — suffix
1. A group of letters added to the end of certain verbs to create nouns. The result
A group of letters added to the end of certain verbs to create nouns. The resulting noun usually refers to an action, a process, or the outcome of something. For example, adding -ment to 'develop' gives 'development', which is the process of growing or improving.
The development of electric cars has reduced air pollution in many cities.
development — noun form of 'develop'
Sanjay and his neighbours reached an agreement about sharing the garden space.
agreement — noun form of 'agree'
Good management helps a small business grow into a large company over time.
Winning the science fair was a huge achievement for Kwame and his classmates.
The government announced a new investment in clean energy projects across the country.
用法筆記
The suffix -ment is very common in English, but it does not work with every verb. Instead of trying to create new words by adding -ment yourself, it is safer to learn the common -ment nouns one by one. For example, 'enjoy' becomes 'enjoyment', but 'like' does not become 'likement'.