IPA: /ˈspeɪʃəsli/
KK: /ˈspeɪʃəsli/
In a way that provides a lot of space; comfortably large or roomy.
The living room was arranged spaciously, allowing for easy movement and plenty of light.
Spaciously → It is formed from "spacious" (from Latin *spatiosus*, meaning having space) and the suffix "-ly" (meaning in a manner of). The word "spaciously" means in a manner that is full of space or ample room.
Think of 'spacious' meaning having a lot of space, and remember that 'spaciously' describes doing something in a way that allows for plenty of room.