Choose the appropriate word which can be substituted for the given sentence: To slap with a flat object.

Choose the appropriate word which can be substituted for the given sentence: $A$ name adopted by an author in his writings.

Choose the appropriate word which can be substituted for the given sentence: 'One who is honourably discharged from service'.

Choose the appropriate word which can be substituted for the given sentence: 'One who does not marry,especially as a religious obligation'.

Choose the appropriate word which can be substituted for the given sentence: To cause troops,etc. to spread out in readiness for battle.

Choose the appropriate word which can be substituted for the given sentence: '$A$ man who always thinks of himself'.