Definition

Describing something that is directed or thrown upward, such as volcanic ash.

Example

The upcast ash from the volcano spread across the sky.

Conversation

Did you see the news about that volcano eruption?

Yeah, I heard it sent an upcast of ash into the sky.

It must have been quite a sight to see all that ash rising.

Definitely! I can't believe how powerful nature can be.

Synonyms & Antonyms

Definition

An opening or shaft that allows air to flow out, especially in a mine, or something that is thrown or directed upwards.

Example

The miners used the upcast to ventilate the underground tunnels.

Conversation

Did you see the old mine shaft while hiking yesterday?

Yeah, it was pretty interesting, especially the upcast that we found near the entrance.

I wonder how much air actually flows through that upcast.

Root Explanation

Upcast → It is formed from "up" (meaning in a higher position) and "cast" (from Old Norse "kasta", meaning to throw). The word "upcast" means to throw something upwards or to direct something towards a higher position.

Memory Tip

Think of throwing something "up" into the air — that's why upcast means to throw upwards.

Visually Confused Words