Definitions:
Definitions in relation to their use in kangaroo words, taken from Google Dictionary, and edited for formatting.
Kangaroo word: underneath
Joey word: under
underneath (adverb): situated directly below.
under (adverb): extending or directly below something.
Accessibility explanation:
The letters U, N, D, E, and R found within the kangaroo word “underneath” arrange in the listed order to complete the joey word “under”. While a word can have multiple definitions, in relation to their use with kangaroo words, these two words share a similar meaning: below something.