Understanding the Phrase: Loud and Boisterous Laugh

The question asks for a single word that means 'a loud and boisterous laugh, often one that is unrestrained or hearty'. We need to find the best fit among the given options.

Analyzing the Options for Laugh Substitutes

Let's look at the meaning of each word provided in the options:

• Guffaw: This word specifically refers to a loud, hearty, and unrestrained burst of laughter. It perfectly matches the description given in the question.
• Giggle: This describes a light, silly, or high-pitched laugh, often repeated. It's not typically loud or boisterous.
• Snicker: This is a sly, partly suppressed, or mocking laugh. It carries a different tone and isn't usually loud or hearty.
• Chuckle: This means to laugh quietly or inwardly, often in a suppressed or contented way. It is the opposite of a loud and boisterous laugh.

Selecting the Best One-Word Substitute

Comparing the definitions, Guffaw is the only word that accurately captures the essence of a 'loud and boisterous laugh, often one that is unrestrained or hearty'.