cos

As a proper noun cos

is (island).

As an adjective undefined is

lacking a definition or value.

As nouns the difference between cos and null

is that cos is a variety of lettuce with long, crisp leaves while null is a non-existent or empty value or set of values.

As a conjunction cos

is because.

As a proper noun Cos

is an island of the Dodecanese, Greece.

As an adjective null is

having no validity, "null and void.

As a verb null is

to nullify; to annul.

As a noun cos

is a variety of lettuce with long, crisp leaves.

As a conjunction cos

is because.

As a proper noun Cos

is an island of the Dodecanese, Greece.

As an abbreviation BC is

british Columbia, a province of Canada.

Bns is likely misspelled.

Bns has no English definition.

As a noun cos

is a variety of lettuce with long, crisp leaves.

As a conjunction cos

is because.

As a proper noun Cos

is an island of the Dodecanese, Greece.

As nouns the difference between cos and tan

is that cos is a variety of lettuce with long, crisp leaves while tan is a yellowish-brown colour.

As proper nouns the difference between cos and tan

is that cos is an island of the Dodecanese, Greece while Tan is an English surname derived from the transliteration of various Asian surnames, particularly originating from China and Vietnam.

As a conjunction cos

is because.

As an adjective tan is

of a yellowish-brown.

As a verb tan is

to change to a tan colour due to exposure to the sun.

As a numeral tan is

the second cardinal number two, formerly used in Celtic areas, especially Cumbria and parts of Yorkshire, for counting sheep, and stitches in knitting.See Wikipedia article on Yan Tan Tethera

As an initialism TAN is

Total Acid Number, the measure of a lubricant's or crude oil's acidity.

As nouns the difference between theta and cos

is that theta is the name for the eighth letter οf the Modern Greek alphabet, ninth in Old Greek while cos is a variety of lettuce with long, crisp leaves.

As a conjunction cos is

because.

As a proper noun Cos is

an island of the Dodecanese, Greece.

As nouns the difference between secant and cos

is that secant is a straight line that intersects a curve at two or more points while cos is a variety of lettuce with long, crisp leaves.

As a conjunction cos is

because.

As a proper noun Cos is

an island of the Dodecanese, Greece.

As nouns the difference between arccos and cos

is that arccos is abbreviation of lang=en while cos is a variety of lettuce with long, crisp leaves.

As a conjunction cos is

because.

As a proper noun Cos is

an island of the Dodecanese, Greece.

Cause is a alternative form of cos.

As nouns the difference between cos and cause

is that cos is a variety of lettuce with long, crisp leaves while cause is the source of, or reason for, an event or action; that which produces or effects a result.

As a conjunction cos

is because.

As a proper noun Cos

is an island of the Dodecanese, Greece.

As a verb cause is

to set off an event or action.

As nouns the difference between course and cos

is that course is a sequence of events while cos is a variety of lettuce with long, crisp leaves.

As a verb course

is to run or flow (especially of liquids and more particularly blood).

As an adverb course

is alternative form of lang=en.

As a conjunction cos is

because.

As a proper noun Cos is

an island of the Dodecanese, Greece.