Synonyms

Jocular describes someone or something that is fond of or characterized by joking, humorous, or playful behavior. Merry is the closest synonym among the choices provided.

"Conducive" 

Monotonous refers to something that is dull, tedious, and repetitious, often lacking in variety or interest. While uniform or same relate to consistency, dull captures the lack of interest inherent in the word.

A nappy is a piece of absorbent material wrapped around a baby's bottom to retain excrement. In American English, this is commonly referred to as a diaper.

Paparazzi are freelance photographers who pursue celebrities to take candid pictures of them. The term is the plural form of paparazzo.

To truncate something means to shorten it by cutting off the top or the end. While reduce is similar, shorten is the most direct synonym for this action.

Retrograde means directed or moving backward. It is often used in scientific contexts, such as planetary motion, or to describe a decline to a worse state.

Abstruse refers to something that is difficult to understand or obscure. Profound can be a synonym when referring to deep, complex subjects that are not easily grasped.

Tedious describes a task or situation that is too long, slow, or dull, making it tiresome or monotonous. Tiresome is the most accurate synonym provided.

A niggard is a selfish person who is unwilling to spend money or use resources. This is synonymous with being a miser.

A penchant is a strong or habitual liking for something or a tendency to do something. Like is the most appropriate synonym among the options.

Resilient describes the ability of a person or object to spring back into shape or recover quickly from difficulties. Flexible is the closest synonym in terms of physical or metaphorical adaptability.

A fad is an intense and widely shared enthusiasm for something, especially one that is short-lived. It is often synonymous with a temporary fashion or craze.

A luminary is a person who inspires or influences others, especially one prominent in a particular sphere. Therefore, famous is the most suitable synonym.

Ludicrous means so foolish, unreasonable, or out of place as to be amusing. Absurd is the closest synonym among the choices as it describes something that is illogical or ridiculous. Difficult and tough refer to effort, while clear refers to transparency or understanding.

To ogle means to stare at someone in a lecherous or greedy manner. While look, peep, and see are related to vision, stare captures the intensity and duration associated with ogling. Peep implies a quick or secretive look, which is different from the open gaze of ogling.

Profound refers to something showing great knowledge or insight, or something very deep. Deep is the direct synonym in this context, often used to describe thoughts or feelings. Meticulous means showing great attention to detail, and vigilant means keeping careful watch.

Enigma means a perplexing, baffling, or seemingly inexplicable matter, person. Out of the options, puzzle is the best answer.
 

Hedge means to try to avoid. So option 4 is correct.

To aver is to state or assert to be the case. Assert is the most accurate synonym as it involves declaring something confidently as a fact. Claim is similar but often implies a lack of proof, whereas aver is a formal declaration of truth.

Forage means to search widely for food or provisions. Search is the general term that fits this action of looking for something, especially in the wild. Scrutinize means to examine closely, and combat means to fight.

Sultry describes weather that is hot and humid. Hot is the primary characteristic of sultry conditions. While oppressive can also describe such weather, hot is the most direct synonym for the temperature aspect.

To irk means to irritate or annoy someone. Annoy is the direct synonym for this feeling of slight anger or impatience. Innovate means to introduce something new, and ereduce is likely a spelling error.

Ribald refers to referring to sexual matters in a rude or irreverent way. Vulgar is the best synonym as it describes things that are unrefined or indecent. Naughty is too mild, and arrogant refers to a sense of superiority.

Combat refers to a purposeful fight or struggle between individuals or groups. Fight is the most common synonym for this physical or metaphorical conflict. Encounter and interaction are broader terms that do not necessarily involve conflict.