户外 hùwài outdoor
How to remember 户外: 户 door + 外 outside = outdoor.
Characters
How it is used
- Outdoors, open-air - 户外运动 (hùwài yùndòng) outdoor sports; 户外广告 outdoor advertising.
- Attributive term for the outdoor domain, contrast 室内 (shìnèi, indoor). Leans toward nature/leisure and signage contexts.
- For simply 'outside (the house/room)' in speech, 外面 (wàimiàn) is more common; 户外 is the 'outdoor-activities' register.