# cornerstone
## Noun (N)
### Sense: the fundamental assumptions from which something is begun or developed or calculated or explained
- ฐาน
- รากฐาน
### Sense: a stone in the exterior of a large and important building; usually carved with a date and laid with appropriate ceremonies
- ศิลากฤษ์
### Sense: a stone at the outer corner of two intersecting masonry walls
- หินมุมกำแพง