Speed Possible Danger Demarcated By Box

• a tight cluster of people or things

• any of various fastenings formed by looping and tying a rope (or cord) upon itself or to another rope or to another object

• a hard cross-grained round piece of wood in a board where a branch emerged

• (of ships and wind) a unit of speed equal to one nautical mile per hour or about 1.15 statute miles per hour

• something twisted and tight and swollen

• soft lump or unevenness in a yarn; either an imperfection or created by design

• a sandpiper that breeds in the Arctic and winters in the Southern Hemisphere

• make into knots; make knots out of

• tie or fasten into a knot

• tangle or complicate

• a loud and disturbing noise

• an illegal enterprise (such as extortion or fraud or drug peddling or prostitution) carried on for profit

• the auditory experience of sound that lacks musical quality; sound that is a disagreeable auditory experience

• a sports implement (usually consisting of a handle and an oval frame with a tightly interlaced network of strings) used to strike a ball (or shuttlecock) in various games

• celebrate noisily, often indulging in drinking; engage in uproarious festivities

• make loud and annoying noises

• hit (a ball) with a racket

• a particular geographical region of indefinite boundary (usually serving some special purpose or distinguished by its people or culture or geography)

• a subject of study

• a part of an animal that has a special function or is supplied by a given artery or nerve

• a particular environment or walk of life

• a part of a structure having some specific characteristic or function

• the extent of a 2-dimensional surface enclosed within a boundary