Question Analysis:
The question asks us to identify the word that is least like the others in the group. The group consists of four options: Othello, King Lear, Oliver Twist, and Macbeth. All four options are well-known literary works, but they belong to different genres and authors. To determine the correct answer, we need to analyze the characteristics of each option and identify the one that stands out from the rest.

Options Analysis:
a) Othello: Othello is a tragedy written by William Shakespeare. It is set in Venice and explores themes of jealousy, manipulation, and betrayal.

b) King Lear: King Lear is another tragedy written by William Shakespeare. It tells the story of an aging king who decides to divide his kingdom among his three daughters, leading to disastrous consequences.

c) Oliver Twist: Oliver Twist is a novel written by Charles Dickens. It is a social novel that follows the life of an orphan boy named Oliver Twist and sheds light on the harsh realities of life in 19th-century London.

d) Macbeth: Macbeth is a tragedy written by William Shakespeare. It portrays the rise and fall of the ambitious Scottish general Macbeth, who becomes consumed by his thirst for power.

Identifying the Odd One Out:
To identify the word that is least like the others, we need to compare the options and find the one that stands out in terms of genre, author, or theme. Here is an analysis of each option:

- Othello and Macbeth are both tragedies written by William Shakespeare. They share similar themes of ambition, betrayal, and the consequences of one's actions.

- King Lear is also a tragedy written by William Shakespeare. While it explores different themes compared to Othello and Macbeth, it still belongs to the same genre and author.

- Oliver Twist, on the other hand, is a novel written by Charles Dickens. Unlike the other options, it is not a tragedy and is written by a different author.

Conclusion:
Based on the analysis, the word "Oliver Twist" is the least like the other words in the group. It is a novel written by Charles Dickens, while the other options are tragedies written by William Shakespeare.