Definitions in relation to their use in these kangaroo words, taken from Google Dictionary, and edited for formatting.
Kangaroo word: fabrication
Joey word: fact
fabrication (noun): the action or process of manufacturing or inventing something.
fact (noun): a thing that is known or proved to be true.
The letters F, A, C, and T found within the anti-kangaroo word “fabrication” arrange in the listed order to complete the joey word “fact”. While a word can have multiple definitions, in relation to their use with kangaroo words, these two words share an opposite meaning: fiction vs. truth.