The definition for combustion is "Act of burning." Used in a sentence: Campers must use fire with great caution to prevent combustion of the parched brush. The definition for incumbent is "necessary as a duty or responsibility.", the definition for raucous is "Noisy, rowdy.", and the definition for exasperation is "The state of being irritated."

The definition for implausible is "Unbelievable." Used in a sentence: Claudia's implausible excuse failed to convince her teacher. The definition for proximity is "closeness.", the definition for fraud is "Trick.", and the definition for raucous is "Noisy, rowdy."

The definition for gargantuan is "Gigantic." Used in a sentence: The gargantuan monster towered over the ten–story bulding. The definition for immoderate is "beyond usual or proper limits.", the definition for entangle is "To involve in trouble.", and the definition for appalling is "Inspiring dismay or disgust."

The definition for euphoria is "Feeling of great happiness." Used in a sentence: Cassandra was overcome with euphoria when she met her long–lost sister. The definition for accentuate is "to emphasize.", the definition for fraud is "Trick.", and the definition for finite is "Having definite limits."

The definition for futile is "Without purpose, completely ineffective." Used in a sentence: Arguing with Andrew is futile because he never changes his mind. The definition for obnoxious is "highly offensive.", the definition for diffident is "Lacking self–confidence.", and the definition for flagrant is "Noticeably offensive."