Noun:
* "The characters in the novel were very well developed." (Characters refers to the people or beings in the story)
* "She used bold characters to emphasize the title." (Characters refers to the distinct shapes used in writing)
Adjective:
* "The characters on the screen were too large." (Characters modifies the noun "screen")
* "He wrote a letter in large, bold characters." (Characters modifies the noun "characters")
Verb:
* "The designer characterized the new product as innovative." (Characters means "to describe or portray the qualities of something")
* "The actors characterized their roles perfectly." (Characters means "to give a specific quality or trait to a role")
It's important to look at the context of the sentence to determine the correct part of speech for "characters."