Definitions

1. verb

to cause something to grow or expand outward from a central point

“The city will extill rapidly as more people move in.”

2. verb

to build or construct something outwardly

“The new hotel will extill a beautiful lobby and garden.”

3. noun

a process of growth or expansion outward from a central point

“The extill of the population led to a need for more housing.”

4. noun

a structure or building that is built outwardly

“The hotel’s extill is a stunning example of modern architecture.”