Definition

To fill in gaps or cracks with a material to make something watertight or airtight.

Example

He decided to caulk the bathtub to prevent any leaks.

Tense Forms

Conversation

Did you manage to caulk the gaps around the window yet?

Not yet, but I have the caulk ready to go.

I think it’s a good idea to caulk before the rainy season starts.

Definitely, I want to avoid any leaks this time.

Synonyms & Antonyms

Definition

A material used to fill gaps or seal joints, often in construction or repair work, to prevent water or air from passing through.

Example

The contractor applied caulk around the windows to keep out drafts.

Conversation

I bought some new caulk for the bathroom repairs.

Oh nice! Is it easy to use?

Yeah, it dries quickly and seals well.

Definition

To fill or seal gaps in a surface to prevent water or air from passing through, often using a special material.

Example

The workers caulked the windows to keep the cold air out during winter.

Tense Forms

Conversation

I noticed some water leaking under the sink.

Oh no! Do you think we need to caulk the pipes?

Yeah, I think that would help seal everything up.

Root Explanation

Caulk originates from Middle English 'calke', which is derived from Old French 'calquer', meaning to press down or to flatten. The word refers to the act of sealing or filling gaps, particularly in construction, to make something watertight or airtight.

Memory Tip

Think of 'pressing down' ('calquer') to seal gaps — that's why caulk means to fill and seal spaces.

Visually Confused Words