Anuran and Tree-frog

Anuran noun - Any of various tailless stout-bodied amphibians with long hind limbs for leaping; semiaquatic and terrestrial species.

Tree-frog and anuran are semantically related. In some cases you can replace phrase "Tree-frog" with "Anuran", this terms are similar.

Tree-frog noun - Any of various Old World arboreal frogs distinguished from true frogs by adhesive suckers on the toes.

Anuran and tree-frog are semantically related. You can use "Anuran" instead a noun phrase "Tree-frog".