The definition for induce is "To influence or cause." Used in a sentence: The loud blast of the cannon induced an avalanche. The definition for beneficial is "helpful.", the definition for archaic is "Characteristic of an earlier time.", and the definition for corrective is "Intended to correct."

The definition for avian is "Relating to birds." Used in a sentence: The old man affectionately referred to pigeons as his "avian friends." The definition for frugal is "thrifty, cheap.", the definition for servile is "Fearfully submissive.", and the definition for pretentious is "Making unjustified claims."

The definition for corrosive is "Bitingly sarcastic." Used in a sentence: The cruel Estella's corrosive comments made Pip cry. The definition for turmoil is "extreme confusion, agitation.", the definition for ethical is "Conforming to accepted standards.", and the definition for fraud is "Trick."

The definition for catastrophic is "Relating to extreme misfortune." Used in a sentence: The effects of the massive hurricane were catastrophic. The definition for untenable is "not able to be defended.", the definition for facade is "false or superficial appearance.", and the definition for implausible is "Unbelievable."

The definition for gruff is "Rough or stern in manner or speech." Used in a sentence: Heidi's grandfather was gruff, barking stern orders and hardly smiling. The definition for demeanor is "behavior towards others.", the definition for accommodate is "To give consideration to.", and the definition for repel is "To resist, reject."