tance -tac- gismu

x₁ is a/the tongue [body-part] of x₂; (metaphor: similar to nazbi, tamji, degji).

(adjective:) x₁ is lingual. See also moklu, bangu, nazbi, tamji, degji.

In notes:

bangu: x₁ is a/the language/dialect used by x₂ to express/communicate x₃ (si'o/du'u, not quote).
degji: x₁ is a/the finger/digit/toe [body-part] on limb/body site x₂ of body x₃; [metaphor: peninsula].
moklu: x₁ is a/the mouth/oral cavity [body-part] of x₂; (metaphor: entrance/intake for consumption).
nazbi: x₁ is the nose [body-part] of x₂ with nostril(s)/nasal passage(s) x₃; [metaphor: protrusion].
tamji: x₁ is a/the thumb/big toe [body-part] on limb x₂ of x₃; [metaphor based on relative shape].
tacpe'u: x₁=p₁ (agent) touches eir tongue to/licks x₂=p₂=t₂ at x₃=p₄ [a locus on x2].
lenguua: x₁ is a language used by x₂ to express x₃ (du'u, not quote)