Easy (5)
Theme is animals
wolf -> flow
cat -> tac
fish -> hifs
rabbit -> tibarb
lama -> amal
Medium (5)
Theme is biomes
forest -> sorfet
ocean -> conea
desert -> tesder
mountain -> taninoum
swamp -> mawps
Hard (5)
Theme is gemstones
diamond -> middano
aquamarine -> nameqauari
amethyst -> theymats
tourmaline -> metalurion
jaspar -> raspaj