Synonyms

"In toto" is a Latin phrase meaning "entirely" or "as a whole," making "totally" the correct synonym. "Relatively" and "partly" mean the opposite - they suggest something is incomplete or partial.

A fortnight is a specific unit of time meaning exactly 14 days or two weeks. This is a common term in British and Commonwealth English. One, three, or four weeks don't match this specific duration.

A flash is a sudden brief burst of light or flame, also described as a "sudden blaze." Cyclones, explosions, and storms are different weather or physical phenomena - none capture the meaning of a quick light burst.

A plateau is a flat, elevated landform, also called a tableland. Mountains are typically pointed or peaked, while rivers and oceans are bodies of water - none match this geological formation of flat highland.

Requisite and essential both mean important.

A foetus is an unborn offspring in the later stages of development, specifically from the eighth week after fertilization until birth. 'Unborn baby' is the most accurate synonym among the options. 'Puppy' refers to a young dog, 'toddler' is a young child who has just learned to walk, and 'infant' means a baby already born.

Relate vent with ventilator.

In this context, trashcans refers to wastepaper baskets - containers for disposing of paper waste in offices. The sentence suggests that with paperless offices, there will be less paper waste and thus fewer wastepaper baskets needed.

'Crestfallen' is dejected, disheartened, or humbled. Hence, option (2) is the answer.

'Concatenate' is linked together or connected. Hence, option (4) is the answer.

'Give a wide berth' is to avoid or keep away, hence, option (3) is the answer.

'Billingsgate' is foul, vulgar and abusive talk. Hence, option (1) is the answer.

A lexicographer is a person who compiles, writes, and edits dictionaries. This specialized profession requires expertise in linguistics, etymology, and the systematic organization of words with their meanings, pronunciations, and usage examples. The term combines 'lexicon' (word/vocabulary) and 'grapher' (writer). Calligraphers focus on handwriting, editors work with various texts, and compilers gather data but not specifically dictionaries.

Euthanasia refers to the practice of intentionally ending a life to relieve pain and suffering, typically for patients with incurable diseases. The term comes from Greek 'eu' (good) and 'thanatos' (death), meaning 'good death.' Unlike suicide which is self-inflicted, euthanasia is typically performed by medical professionals with patient consent. Euphoria is extreme happiness, and gallows refers to execution equipment.

Neologism refers to the creation or use of new words or expressions. Vocabulary refers to all words in a language, not just new ones. Coinage relates to currency or money, while malapropism is the mistaken use of a word in place of a similar-sounding one.