Choose the word whose meaning is different from the other words in the group:
Deception, Integrity, Rectitude, Fairness, Probity, Uprightness

a) Deception
b) Rectitude
c) Probity
d) Integrity

Hint: Synonyms are those words which have similar or same meanings as that of the given word. When replaced with these words, they do not change the meaning of the sentence. The synonyms can be different forms such as adjectives, nouns, verbs, or adverbs.
Here, there is a word amongst the six words which is not related to the rest of the five words. To do so, we must go through the meanings of all the words.

Complete answer:
Considering the options that we have in hand,
Deception: This word refers to something that is fraud and deceiving; Some synonyms of this word are a ruse, trick, or imposture.
Eg: Deception is the art mastered by con artists.

Rectitude: Refers to the virtue of morality or following the code of conduct; it can also describe how to correct judgment or situation is.
Eg: The East Prosecution Centre is known for its rectitude in judgment.

Probity: this word refers to integrity and uprightness; similar to rectitude. It is often used to describe the honesty of a person or organization.
Eg: Probity demands respect no matter the place or person.

Integrity: This word is used to describe that which is whole, unimpaired; it is also used to refer to uprightness and honesty.
Eg: It is important that we respect the integrity of a person.

Hence, Option a, deception, is the answer which does not relate with the other five words.

Note: Here, in order to find the word which doesn’t sit with the meaning of others, but different words in a sentence like,
“His words and actions describe his integrity.”
Replace the underlined word with all the words given and check if the meaning varies. If it does, then that word is the answer.