spoor / spore are similar-sounding terms with different meanings (referred to as homophones). To better understand the differences, see below for definitions, pronunciation guides, and example sentences using each term. 👇
spoor: (noun) the trail left by a person or an animal; what the hunter follows in pursuing game.
spore: (noun) a small usually single-celled asexual reproductive body produced by many nonflowering plants and fungi and some bacteria and protozoans and that are capable of developing into a new individual without sexual fusion.
spoor: s·p·UH·r
spore: s·p·AO·r
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)