Four words have been given, out of which three are alike in some manner and one is different. Select the odd one.

Sword, Dagger, Spade, Knife

Let's examine the given words: Sword, Dagger, Spade, and Knife.

Sword, Dagger, and Knife are all types of bladed weapons. These are commonly used for cutting or stabbing.

Spade, however, is not primarily a weapon; it is a tool used for digging, particularly in gardening or construction.

Since Sword, Dagger, and Knife are all weapons, and Spade is a tool, the odd one out is Spade.

Thus, correct option is (d).