urn

As an initialism url

is a uniform resource locator: the address of a web page, ftp site, audio stream or other internet resource.

As an abbreviation url

is (us|military|nautical) unrestricted line officer.

As a noun urn is

(internet) uniform resource name.

As nouns the difference between urn and vat

is that urn is (internet) uniform resource name while vat is ford.

As a noun urn

is (internet) uniform resource name.

As an adjective undefined is

lacking a definition or value.

As nouns the difference between urn and pitcher

is that urn is (internet) uniform resource name while pitcher is one who pitches anything, as hay, quoits, a ball, etc or pitcher can be a wide-mouthed, deep vessel for holding liquids, with a spout or protruding lip and a handle; a water jug or jar with a large ear or handle.

As nouns the difference between urn and cup

is that urn is (internet) uniform resource name while cup is cup.

As a verb cup is

to not attend a course, a class without permission of the teacher or cup can be to temporarily or permanently cease to provide (electricity or water supply) or cup can be to switch off (a breaker or fuse).

As nouns the difference between urn and jar

is that urn is a vase with a footed base while jar is a small, approximately cylindrical container, normally made of glass or clay, for holding fruit, preserves, etc., or for ornamental purposes.

As a verb jar is

to knock or strike sharply.

As an initialism JAR is

initialism of Java ARchive|lang=en.

As nouns the difference between coffin and urn

is that coffin is an oblong closed box in which a dead person is buried while urn is (internet) uniform resource name.

As a verb coffin

is to place in a coffin.

As nouns the difference between pail and urn

is that pail is a vessel of wood, tin, plastic, etc, usually cylindrical and having a handle -- used especially for carrying liquids, for example water or milk; a bucket (sometimes with a cover) while urn is (internet) uniform resource name.

As nouns the difference between erne and urn

is that erne is an eagle while urn is a vase with a footed base.

As nouns the difference between pot and urn

is that pot is a vessel used for cooking or storing food, or for growing plants in, especially flowers while urn is a vase with a footed base.

As a verb pot

is to put (something) into a pot.