Answer:
A compound word, sometimes just called a compound, is a series of two or more words that collectively form a single word1. They express a single idea and function as a single word2. There are three types of compound words, which differ in terms of how they are written1:
Open compound word: Written with spaces between the words (e.g., “high school”)1.
Hyphenated compound word: Written with hyphens between the words (e.g., “sister-in-law”)1.
Closed compound word: Written with no spaces or punctuation (e.g., “cheesecake”)1.
Compound words can be formed by combining two or more words, prefixes or suffixes with words, or by combining two or more word elements3. They can be nouns (e.g., cheeseburger), adjectives (“red-hot temper”), and verbs (“waterproof the deck”)2. For any confusion about whether a word qualifies as a compound or not, it’s best to consult a reliable dictionary like Merriam-Webster1
Step-by-step explanation: