Definitions in relation to their use in kangaroo words, taken from Google Dictionary, and edited for formatting.
Kangaroo word: perimeter
Joey word: rim
perimeter (noun): the continuous line forming the boundary of a closed geometric figure.
rim (noun): the upper or outer edge of an object, typically something circular or approximately circular.
The letters R, I, and M found within the kangaroo word “perimeter” arrange in the listed order to complete the joey word “rim”. While a word can have multiple definitions, in relation to their use with kangaroo words, these two words share a similar meaning: the outside boundary of something.