boundary

(noun)

noun

1. the line or plane indicating the limit or extent of something

Similar word(s): bound, bounds

Definition categories: location, extremity

2. a line determining the limits of an area

Similar word(s): bound, edge

Definition categories: shape, line

3. the greatest possible degree of something

- what he did was beyond the bounds of acceptable behavior

Similar word(s): bound, limit

Definition categories: attribute, extent