Vocabulary and Synonyms

ADJUNCT means something added to another thing but not essential to it - an auxiliary or subordinate attachment. It describes something connected in a secondary or supplementary position.

A bellwether is a sheep that leads the flock, traditionally wearing a bell. By extension, it means something that indicates trends or serves as a leader. The other options are incorrect: raillery means good-humored teasing, noisome means offensive-smelling, and hidebound means inflexible or reactionary.

To caterwaul means to make a shrill, discordant sound, or to have a noisy argument. It literally refers to the crying of a cat, especially during mating. The other options don't fit: ribald means vulgar or indecent, oblivious means unaware, and hierarchy is a system of ranking.

Chimerical means wildly fanciful, imaginary, or unrealistic - derived from the chimera, a mythical monster. The other options are wrong: supine means lying on back or lethargic, poltroon means a coward, and liturgy is a religious service.

Ribald refers to language or humor that is vulgar, coarse, or indecent, often with sexual undertones. It matches the definition perfectly. Caterwaul means to howl, oblivious means unaware, and hierarchy is a ranking system - none fit.

Supine literally means lying on one's back with the face upward. Figuratively, it means listless, apathetic, or passive. Chimerical means unrealistic, poltroon is a coward, and liturgy is a religious rite.

Nascent means just coming into existence, beginning to develop, or in an early stage. It comes from the Latin word for birth. 'Related to birth' correctly captures this meaning of something emerging or beginning.

Rampant means spreading unchecked, flourishing excessively, or occurring without restraint. It describes something (often negative like rumors or disease) growing without control. 'Unstopped' best captures this meaning of spreading without limits.

A hitch in your giddy-up is an idiom meaning to feel off, unwell, or not at one's usual energy level. The phrase comes from horseback riding - a hitch would be a problem in the horse's movement. It describes someone not feeling their best.

The idiom 'A fool at 40 is a fool forever' means that if a person hasn't developed maturity and wisdom by age 40, they are unlikely to ever develop these qualities. Option C correctly identifies this as referring to someone who lacks maturity, though the phrasing 'is not matured' is grammatically awkward.

'Strike at the heart of something' means to attack or damage the most essential or central part of an issue, problem, or system. Option B correctly captures this meaning of causing severe damage to something essential. Options A, C, and D describe attacking or harming but miss the specific meaning of targeting the core or essential part.

'Write away for something' means to send a request by mail to a distant place to obtain something, such as information, catalogs, or products. Option B correctly captures this meaning of sending for something from a distant place. Options A, C, and D describe different concepts (disorganization, ruthless competition, shouting) unrelated to the idiom.

The 'peanut gallery' originally referred to the cheapest (often rowdy) seats in a theater, and now metaphorically means critics who interrupt or heckle from the sidelines. Options A, B, and C are unrelated to this historical idiomatic expression.