verb ·Rare ·Advanced level

Definitions

Verb

1. 1
   To reduce the sampling rate of (a signal).
2. 2
   To reduce the sample size of a data set by randomly eliminating data points, typically so that it matches the size of another set.

Antonyms

All antonyms

upsample

Etymology

From down + sample.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.