... their meanings here.6 goof- proof SPELLING NOUN ENDINGSSUFFIX MEANING EXAMPLE-escence state of adolescence,obsolescence-ism state or doctrine of Catholicism, materialism-ist one who believes ... suffix.-ist noun / verb / adjective-ify noun / verb / adjective-ology noun / verb / adjective-ile noun / verb / adjective-tion noun / verb / adjective-able noun / verb / adjective-ious noun ... idealist, anarchist-ity state of being humility, civility-ment quality commitment,impediment-ology study of geology, biology-tion act or state of isolation, contraction-y,-ry `state of mimicry,...