Word Power

Aside (N): means words spoken by an actor in such a way that they are heard by the audience but supposedly not by the other actors.

Bric-a-brac is a small, rare, or artistic object placed about a room for decoration.

Charade: a word or phrase acted out or described as in verse, for others to guess.

Eavesdrop: to listen secretly to the private conversation of others 

A heist is a organized robbery or theft, typically involving careful planning. Robbery is the correct synonym as it directly refers to taking property illegally. Coronation, donation, and rotation are unrelated meanings.

Doyen: the senior member of a group

Fiasco: a complete failure; esp., an ambitious project that ends as a ridiculous failure

Interlocutor: a person taking part in a conversation or dialogue from someone's side

Gritty: brave; plucky  

Kerfuffle: disorder; uproar; confusion 

Jaunty: carefree; sprightly; perky  

Ordain: to predetermine; predestine  

Limpid: perfectly clear; transparent; not cloudy or turbid

Thaw (N): a becoming less reserved in manner  

Quiescent: quiet; still; inactive 

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Parsimonious means characterized by parsimony; miserly 

A sobriquet is a nickname or assumed name, often used humorously or affectionately. This French term refers specifically to an alternative name someone is known by. Divorce, popularity, and poverty are completely unrelated concepts.

Muffle: to wrap up in a shawl, blanket, cloak, etc. so as to hide, keep warm, or protect 

Inspire can mean to induce or bring about a particular state, feeling, or action. In this sense, 'induce' is the closest synonym among the options. While not a perfect synonym, 'induce' captures the causative aspect of inspiration.

Velocity is speed with a specified direction, but in common usage and basic physics contexts, 'speed' is the most direct answer. Race, hurry, and flight describe actions involving speed but are not synonyms for velocity itself.

It means something that is present, or seeming to be present, everywhere at the same time; omnipresent. 

Alert describes someone who is watchful, attentive, and quick to notice things. It refers to being mentally prepared and observant. Thoughtful and clever describe intelligence, while careful describes caution, not attentiveness.

Upbraid: to rebuke severely or bitterly; censure sharply 

Volte face: a complete reversal of opinion, attitude, etc.