It could be an adjective or an adverb.
When a suffix is added to a word ending in a consonant the y changes to an I.
it slightly changes the meaning
When a suffix is added to a word from the first group, the "er" can sometimes change to an "or" depending on the word and the rules of spelling. For example, "sing" becomes "singer" and "run" becomes "runner."
A suffix is added to the end of a word to modify its meaning.
A suffix is added at the end of a word. A prefix is added at the beginning.
There is a suffix because "achieve" is the root word and "ed" is the added part, so it is a suffix. A prefix is added at the beginning of a word and a suffix is added to the end of a word.
It is a suffix.
The suffix "ous" is added to the word "Treacher" which is not the root word but the root word is not far off, as it is treachery.
The suffix that can be added to the word distinct is -ion, to form the word distinction.
" less " is the suffix added to the word spine.
The suffix "-ing" can be added to "shape" to form the word "shaping."
an affix that is added in front of a word while a suffix is an affix added at the end of a word