Each of the following sentences has a word or phrase underlined. Read the sentences carefully and find which part of speech the underlined word is. Indicate your response on the Answer Sheet accordingly.

Alas! He has been defeated.

The correct answer is Interjection.

Key Points

• As we have to identify the part of the speech of the word, we need to know the significance of the parts of the speech.
• Parts of speech:
  • A category to which a word is assigned in accordance with its syntactic functions. 
  • In English, the main parts of speech are noun, pronoun, verb, adjective, adverb, preposition, conjunction, and interjection.
• Let's understand the definitions of parts of speech given in the options:
   

  Parts of speech	Function	Example
  Interjection	It is used to show a sudden feeling of happiness, anger, sorrow, etc.	Alas! I am ruined. Hurrah! I have won.
  Adverb	It is used to qualify the verb, adjective, or other adverbs in the sentence.	Serve the food properly.
  Adjective	to qualify a noun or pronoun in the sentence.	He is a good boy.
  Conjunction	It is used to join two words, phrases, or sentences.	Come here and take your dinner.

The given word 'Alas!' describes a feeling of sadness. Thus the correct answer is Option 3.