noun, verb ·Rare ·Advanced level

Definitions

Noun

1. 1
   A form of upgrade involving a switch to a different but equivalent product, e.g. another manufacturer or another operating system.
2. 2
   A choice that is comparatively different but not objectively better or worse than another.

Verb

1. 1
   To switch to a different but equivalent product. ambitransitive

Etymology

Blend of side + upgrade.

Related phrases

operating system

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