The suffix 'ful' often means what?

The suffix 'ful' means "full of" and is used to form adjectives describing something characterized by or filled with a particular quality or element. For example, in the word "joyful," it describes someone full of joy. This suffix can be attached to nouns to create an adjective that conveys the presence or abundance of the concept represented by the noun.

Other options like "without," "action/process," and "state of" represent different meanings conveyed by other suffixes or prefixes, but they do not align with the meaning of 'ful.' Understanding that 'ful' conveys the essence of abundance or being filled with a characteristic helps in recognizing how to use this suffix effectively in various contexts.