Growl deeply.

Meaning: This means to order or ask someone or something to make a low, rumbling sound with a lot of depth or intensity, like a cat growling to warn someone off. For example, The cat growls deeply to scare the bullies away.

Choice of Words: Growl is a low, rumbling sound that animals make when they are angry or threatened. Deeply is an adverb that means with a lot of depth or intensity. Combined, they create an order or request for someone or something to make a low, rumbling sound with a lot of depth or intensity.

Alternative Expressions

Make a big, scary noise.

Meaning: This means to make a loud, frightening sound, like a monster roaring.

Choice of Words: Make is a verb that means to create or produce something. Big is an adjective that means large in size or amount. Scary is an adjective that means causing fear or alarm. Noise is a noun that means a sound, especially one that is loud or unpleasant. When you put them together, "Make a big, scary noise" means to create a loud, frightening sound.

Roar like a lion.

Meaning: This means to make a loud, deep sound like a lion, which is a big, powerful cat.

Choice of Words: Roar is a verb that describes the loud, deep sound made by lions and other big cats. Like is a preposition that means similar to or resembling. Lion is a noun that refers to a large, powerful cat with a mane of hair around its neck. When you put them together, "Roar like a lion" means to make a loud, deep sound like a lion.

Related Expressions