Also called narrower context. A record to which another record or multiple records are superordinate in a hierarchy (for example, Brewster chair is a narrower term to armchair). In thesauri, the relationship indicator for this type of term is NT. Variations on the notation include NTG, (narrower term generic), NTP (narrower term partitive), NTI (narrower term instance), NT1 (narrower term level 1), NT2 (narrower term level 2), etc