• A collection point for mail intended for onward delivery, a secure box or receptacle for this purpose.
• A delivery point for mail, a box, compartment or slot for this purpose.
• A hidden container that holds a logbook and rubber stamp, found by following clues.
verb
• To transfer a widescreen motion picture to home video formats while preserving the original aspect ratio, with the placing of black bars above and below the picture area.
• To hunt for letterboxes (containers with logbook and rubber stamp) by following clues.
adjective
• Transferred to home video formats while preserving the original aspect ratio, having black bars above and below the picture area.
• a frame that supports a boat while it is under construction
• a frame for constraining an animal while it is receiving veterinary attention or while being shod
• a former instrument of punishment consisting of a heavy timber frame with holes in which the feet (and sometimes the hands) of an offender could be locked
• a solid piece of something (usually having flat rectangular sides)
• a rectangular area in a city surrounded by streets and usually containing several buildings
• a three-dimensional shape with six square or rectangular sides
• a number or quantity of related things dealt with as a unit
• housing in a large building that is divided into separate units
• (computer science) a sector or group of sectors that function as the smallest data unit permitted
• an inability to remember or think of something you normally can do; often caused by emotional tension
• a simple machine consisting of a wheel with a groove in which a rope can run to change the direction or point of application of a force applied to the rope
• a metal casting containing the cylinders and cooling ducts of an engine
• an obstruction in a pipe or tube
• a platform from which an auctioneer sells
• the act of obstructing or deflecting someone's movements
verb
• render unsuitable for passage
• hinder or prevent the progress or accomplishment of
• stop from happening or developing
• interfere with or prevent the reception of signals
• run on a block system
• interrupt the normal function of by means of anesthesia
• shut out from view or get in the way so as to hide from sight
• stamp or emboss a title or design on a book with a block
• a duplicator (trade mark Xerox) that copies graphic matter by the action of light on an electrically charged photoconductive insulating surface in which the latent image is developed with a resinous powder
• orchid growing along streams or ponds of western North America having leafy stems and 1 greenish-brown and pinkish flower in the axil of each upper leaf
• a bluish translucent magnetic liquid obtained by compressing gaseous oxygen and then cooling it below its boiling point; used as an oxidizer in rocket propellants
• a bluish translucent magnetic liquid obtained by compressing gaseous oxygen and then cooling it below its boiling point; used as an oxidizer in rocket propellants
Note: This list has been curated by our developer and author and fine-tuned since 2016 with manual additions, exclusions and rankings. Thousands of user contributions from rappers, singers, songwriters and poets have also been used for accuracy.