Define the following word using the meaning of the suffix. use your dictionary if you are uncertain of the definition. achievement

The answer is indeed the act of achieving.

Explanation:

The word "achievement" is formed by adding the suffix - ment to the end of the verb "achieve". A suffix is a letter or group of letters added to the end of a word to change it into a new word by altering its meaning. Some commonly seen suffixes are: -ly, -ness, -less, -ful, -ment, -able and so on.

The suffix -ment comes from the Latin -mentum, which indicates the product or result of an action. Thus, when added to "achieve", that suffix forms "achievement", which is the result of achieving, or the action of achieving.