IPA: //ˈpleɪ.nər//
KK: /ˈplænər/
Relating to a flat surface or having two dimensions.
The architect designed a planar structure that blended seamlessly with the landscape.
Planar → It is formed from "planus" (meaning flat or level) in Latin and the suffix "-ar" (meaning relating to). The word "planar" refers to something that is flat or two-dimensional, relating to a plane.
Think of 'flat' ('planus') to remember that 'planar' describes something that is flat or two-dimensional.