A participle is a verb that acts like an adjective, like a running leap, scorned lover, or boiled egg.
This is a technical word that will come up when you're studying grammar or linguistics. From a Greek root meaning “partaker,” a participle wants to partake of both the verb and adjective worlds. If you said, "I need a running start!" before a race, running is a participle. If you notice a trapped bear, trapped is the participle. This is a word that is a little confusing to understand, even though you use participles all the time.