origin; source; base; basis; cause; ingredient; material
confirmation; verification; validation; review; check; affirmation
funny; amusing; strange; odd; improper; unsuitable
to search for; to look for; to hunt for; to search (a house, pocket, etc.); to search through; to rummage in (e.g. a drawer)
opponent; rival; adversary; menace; danger; threat
mountain; hill; mine (e.g. coal mine); heap; pile; crown (of a hat); thread (of a screw)
secret; secrecy; mystery; secret (e.g. to success); esoteric teachings
everyone; everybody; all; everything; all
to notice; to recognize; to recognise; to become aware of; to perceive; to realize
to be caught; to be arrested; to hold on to; to grasp; to find (e.g. proof); to get (e.g. a taxi)
carrying (on one's person or in the hand); mobile phone; cell phone
passage; pathway; roadway; avenue; aisle
escape; break-out; prolapse; proptosis
to take someone (to some place); to take someone along; to lead someone away
to run to; to come running; to rush (someplace); to hasten
to find out; to discover; to locate
as a test; as an experiment; by way of experiment; by way of trial; tentatively
periodic; regular; routine
questioning; interrogation; examination (of a witness)
(item of) equipment; accessories (bike, auto)
option; selecting an option; optional extra; individual item; separate item; option