Which of the following nouns is a compound noun?OptionsDogToothbrushRiver House

1. Identify the Options

The nouns provided in the options are:

• Dog
• Toothbrush
• River
• House

2. Define Compound Noun

A compound noun is a noun that is made up of two or more words that combine to form a new meaning.

3. Analyze Each Option

1. Dog - This is a singular noun and not a compound noun.
2. Toothbrush - This is a compound noun formed by combining "tooth" and "brush."
3. River - This is a singular noun and not a compound noun.
4. House - This is a singular noun and not a compound noun.

4. Verify the Findings

Among the options provided, "Toothbrush" is the only compound noun as it consists of two parts that combine their meanings.

Final Answer

Toothbrush is the compound noun from the given options.