Prefetch
Verb · Development
Definitions
To speculatively load data, assets, or DNS resolutions before they are explicitly needed, anticipating that the user or program will request them soon. In browsers, link rel="prefetch" hints fetch low-priority resources during idle time; in CPUs, prefetch instructions pull cache lines from main memory ahead of access.
In plain English: Loading something in advance — before anyone asks for it — so it's ready immediately when needed.
Example: "We prefetch the next page's data on hover so navigation feels instant."