© 2026 Sloth Lingo. Learn easy. Lounge wisely.

breakthrough

Upper-Intermediate (B2)

IPA: /ˈbreɪkθruː/

KK: /ˈbreɪkˌθru/

noun
Definition

A significant achievement that allows for further progress, especially in fields like science or technology.


Example

The scientist made a breakthrough in cancer research that could save many lives.


Conversation
Sloth A
I just read about a major breakthrough in renewable energy technology.
Sloth B
Really? That's exciting! What did they discover?
Sloth A
They found a way to increase efficiency by 40%.
Sloth B
Wow, that's a huge improvement! It could change everything.

Synonyms & Antonyms
Synonyms
advancement
discovery
innovation
Antonyms
setback
failure
impasse
Root Explanation

Breakthrough → It is formed from "break" (from Old English "brecan", meaning to shatter or destroy) and "through" (from Old English "þurh", meaning by means of or across). The word "breakthrough" refers to a significant or sudden advance or discovery that occurs by overcoming obstacles.

Memory Tip

Think of 'shattering' something ('break') and then moving 'across' or 'by means of' it ('through') — that's how a breakthrough represents a significant advance.

Visually Confused Words
betrough
athrough
Is this page helpful?