# flattener

> English word · Noun

## Definitions
1. Anything that flattens.
2. A trade whose terms are based on the assumption that the rate of return will decrease.

## Etymology
From flatten + -er.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/flattener