Partial-match anchor
A partial-match anchor includes the target keyword inside a longer, natural phrase, such as "these durable running shoes" rather than just "running shoes".
A partial-match anchor sits between an exact match anchor and a generic anchor. It signals relevance to the target keyword while reading like something a real writer would naturally type, because the keyword is wrapped in surrounding words or a variation rather than standing alone.
It matters because partial matches let you communicate topical relevance without the over optimization risk of stacking exact phrases. They are usually the workhorse of a healthy anchor text profile alongside branded and naked-URL anchors, giving you keyword context while staying within natural-looking patterns.
The practical nuance: partial matches are not risk-free if you force the keyword into every anchor. Variety still matters, so mix in synonyms, related terms, and longer descriptive phrases. The goal is anchors that earn relevance honestly, the way an editor would link if you had not asked them to.