-(of a place, text, etc.) to do a thorough search in order to locate

something

-(of a stimulus or mental process) below the threshold of sensation

or consciousness; perceived by or affecting someone's mind

without their being aware of it

-objects kept as a reminder or souvenir of a person or event

-the outer limits or edge of an area or object

an unusual or unexpected sight; strange apparitions in the sky; a ghostly figure

-(of smoke, cloud, or steam) moving or flowing outward with an

swelling motion

-(of air or water) moving unsteadily or violently