before

Definition

Examples

Please turn off all the lights before you leave the office.

Collocations

• Easy wash hands before dinner
  to wash hands before dinner, meaning to clean with some chemical process
• Medium submit invoices before the deadline
  to present a document or proposal for consideration regarding invoices before the deadline
• Hard appear before the regulatory tribunal
  to appear before the regulatory tribunal, meaning to give a certain impression or have a certain outward aspect
• Very Hard the calm before the financial storm
  referring to the calm before the financial storm