In this classification question on everyday objects, select the odd word from the given options based on the usual physical shape of the object.

Introduction / Context:
This verbal reasoning question asks you to select the odd word from a list of familiar objects. The test here is whether you can recognize a common physical characteristic shared by most of the objects and then find the one that does not fit that characteristic. Such questions appear frequently in aptitude tests to measure basic observation skills and classification ability.

Given Data / Assumptions:
- The given options are Book, Tyre, Bangle, and Compact disk.- All are everyday objects that people see or use in normal life.- The likely basis of classification is the outer physical shape.

Concept / Approach:
A simple strategy is to think about the usual geometric form of each object. Tyres, bangles, and compact disks are generally circular or ring shaped. A book, however, is usually rectangular or nearly rectangular in shape. The odd one out will be the object that does not share the common circular property with the others.

Step-by-Step Solution:
Step 1: A tyre is circular and has a ring like shape.Step 2: A bangle is also a circular ring worn around the wrist.Step 3: A compact disk is round in shape, designed to be a flat circle.Step 4: A book is normally rectangular, with straight edges and four corners.Step 5: Three objects share the circular or ring property, while one does not.

Verification / Alternative check:
You can visualize placing each object on a table and tracing its outline. The tyre, bangle, and compact disk will create circular outlines. The book will create a four sided rectangular outline. This confirms that the book is different in shape from the other three.

Why Other Options Are Wrong:
Tyre: Clearly circular in cross section.Bangle: Also circular in form.Compact disk: A perfectly circular disk.

Common Pitfalls:
Some learners get distracted by material or use rather than shape. The question is best answered by focusing on the most obvious common feature, which is the round outline of three of the objects.

Final Answer:
The odd word is Book because it is not circular, unlike the tyre, bangle, and compact disk.