Definition

Having an empty space inside or lacking substance; can also refer to a sound that is deep and echoing.

Example

The tree trunk was hollow, making it a perfect home for small animals.

Comparatives & Superlatives

Conversation

I found this old tree stump in the park today, but it looked so hollow inside.

That sounds interesting! Was it big?

Yeah, it was pretty large, but that hollow part made it look kind of eerie.

I can imagine! Those kinds of things can be really spooky.

Synonyms & Antonyms

Definition

In a way that produces a sound that is empty or not solid inside.

Example

The tree trunk sounded hollow when I knocked on it.

Conversation

Did you hear that strange noise coming from the attic?

Yeah, it sounded really hollow up there.

I wonder if something is stuck or if it's just the old wood creaking.

Definition

To change into a state of being empty or having a space inside.

Example

The tree trunk began to hollow as it aged.

Tense Forms

Conversation

Have you noticed how the tree in our backyard seems to hollow out every year?

Yeah, it does look like it's getting emptier. What do you think is happening?

I wonder if the roots are dying or if it's just the weather making it hollow.

Definition

An empty space or cavity in something, often shaped like a bowl or a valley.

Example

The children found a hollow in the ground where they could play.

Conversation

Did you see that hollow in the mountain during our hike?

Yeah, it looked like a perfect spot to take a picture.

I wonder how deep that hollow really is.

Root Explanation

Hollow → The word originates from Old English 'holh' (meaning a hole or cavity) and is related to the verb 'hollian' (to make hollow). It describes something that is empty or has a space inside.

Memory Tip

Think of a 'hole' or 'cavity' when you hear 'hollow' — it helps you remember that hollow means something that is empty inside.

Visually Confused Words