Question

in_the_loop_610 a rough guide; an unwritten or customary rule based on experience or practice

Accepted Answer

RULE OF THUMB In this company there is no written rule about how long we can take for our lunch break, but the rule of thumb has been about one hour.Sometimes it’s hard to know how you are supposed to address people you are meeting for the first time. A good rule of thumb is to be formal and wait until they invite you to call them by their first names.

Id	in_the_loop_610
Idiom	RULE OF THUMB
Definition	a rough guide; an unwritten or customary rule based on experience or practice
Examples	In this company there is no written rule about how long we can take for our lunch break, but the rule of thumb has been about one hour. Sometimes it’s hard to know how you are supposed to address people you are meeting for the first time. A good rule of thumb is to be formal and wait until they invite you to call them by their first names.

Rule Thumb Loop Rough Guide Unwritten Customary Based