IPA: /sɜːrˈkʌmˌpoʊlər/
KK: /sɜrˈkʌmˌpoʊlər/
Relating to or situated around the North or South Pole.
The circumpolar stars are visible all year round in the northern sky.
Circumpolar → It is formed from "circum-" (meaning around) and "polaris" (from Latin "polaris", meaning of the pole). The word "circumpolar" refers to something that is situated or occurring around the pole, particularly in relation to celestial bodies that are visible around the North or South Pole.
Think of things that are located 'around' ('circum-') the 'pole' ('polaris') — that's why circumpolar refers to areas or objects around the poles.
No commonly confused words.