Definitions in relation to their use in kangaroo words, taken from Google Dictionary, and edited for formatting.
Kangaroo word: bemoan
Joey word: moan
bemoan (verb): express discontent or sorrow over.
moan (verb): make a long, low sound expressing physical or mental suffering.
The letters M, O, A, and N found within the kangaroo word “bemoan” arrange in the listed order to complete the joey word “moan”. While a word can have multiple definitions, in relation to their use with kangaroo words, these two words share a similar meaning: unpleasant.