the.com/bounds
The invisible fence the universe keeps reminding you exists.
means The limits or borders within which something must stay, whether physical, legal, or behavioral.
from From Old French bonde, a property marker — the literal stones laid to say where one field ends and the lawsuits begin.
Out of boundsSports' polite phrase for blew it sideways.
Bound vs boundsDifferent bound means tied up or leaping.
Math usageUpper and lower bounds fence in functions.