Note: these 'words' (valid or invalid) are all the permutations of the word bed. These words are obtained by scrambling the letters in bed.
Definitions and meaning of bed
From Middle Englishbed, bedde, from Old Englishbedd(“bed, couch, resting-place; garden-bed, plot”), from Proto-Germanic*badją(“plot, grave, resting-place, bed”). Cognate with North Frisianbaad, beed(“bed”), Low GermanBedd, Dutchbed(“bed”), GermanBett(“bed”), Swedishbädd(“bed”), Icelandicbeður(“bed”).
The Proto-Germanic term may in turn be from Proto-Indo-European*bʰedʰ-(“to dig”) with various theories explaining the development in meaning. If it is, the term is also cognate with Ancient Greekβοθυρος(bothuros, “pit”), Latinfossa(“ditch”), Latvianbedre(“hole”), Welshbedd(“grave”), Bretonbez(“grave”); and probably also Russianбодать(bodatʹ, “to butt, to gore”).
(Received Pronunciation, General American) IPA(key): /bɛd/
(AAVE, some speakers) IPA(key): [beː]
(General Australian) IPA(key): /bed/
A piece of furniture, usually flat and soft, on which to rest or sleep.
A prepared spot in which to spend the night.
(usually after a preposition) One's place of sleep or rest.
(uncountable, usually after a preposition) Sleep; rest; getting to sleep.
(uncountable, usually after a preposition) The time for going to sleep or resting in bed; bedtime.
(uncountable) Time spent in a bed.
George, the eldest son of his second bed.
(figuratively, uncountable) Sexual activity.
A place, or flat surface or layer, on which something else rests or is laid.
The bottom of a body of water, such as an ocean, sea, lake, or river. [from later 16thc.]
An area where a large number of oysters, mussels, other sessile shellfish, or a large amount of seaweed is found.
1941, Emily Carr, Klee Wyck, Chapter 18, 
I knew that there were kelp beds and reefs which could rip the bottoms from boats down in Skedans Bay.
A garden plot.
Breezes blowing from beds of iris quickened her breath with their perfume; she saw the tufted lilacs sway in the wind, and the streamers of mauve-tinted wistaria swinging, all a-glisten with golden bees; she saw a crimson cardinal winging through the foliage, and amorous tanagers flashing like scarlet flames athwart the pines.
A foundation or supporting surface formed of a fluid.
The superficial earthwork, or ballast, of a railroad.
The platform of a truck, trailer, railcar, or other vehicle that supports the load to be hauled.
A shaped piece of timber to hold a cask clear of a ship’s floor; a pallet.
(printing, dated) The flat part of the press, on which the form is laid.
(computing) The flat surface of a scanner on which a document is placed to be scanned.
A piece of music, normally instrumental, over which a radio DJ talks.
(darts) Any of the sections of a dartboard with a point value, delimited by a wire.
(trampoline) The taut surface of a trampoline.
(heading)A layer or surface.
A deposit of ore, coal, etc.
(geology) The smallest division of a geologic formation or stratigraphic rock series marked by well-defined divisional planes (bedding planes) separating it from layers above and below.
(masonry) The horizontal surface of a building stone.
(masonry) The lower surface of a brick, slate, or tile.
(Can we find and add a quotation of Knight to this entry?)
(masonry) A course of stone or brick in a wall.
Sense 1. To prepare a bed is usually to "make" the bed, or (US, Southern) to "spread" the bed, the verb spread probably having been developed from bedspread.
Like many nouns denoting places where people spend time, bed requires no article after certain prepositions: hence in bed(“lying in a bed”), go to bed(“get into a bed”), and so on. The forms in a bed, etc. do exist, but tend to imply mere presence in the bed, without it being for the purpose of sleep.
See also Appendix:Collocations of do, have, make, and take
See bed/translations § Noun.
bed (third-person singular simple presentbeds, present participlebedding, simple past and past participlebedded)
Senses relating to a bed as a place for resting or sleeping.
(intransitive) To go to bed.
(transitive) To place in a bed.
For she was not only publicly contracted, but stated as a bride, and solemnly bedded, and after she was laid, there came in Maximilian's ambassador with letters of procuration
To put oneself to sleep. (Can we add an example for this sense?)
(transitive) To furnish with a bed or bedding.
(transitive, intransitive) To have sexual intercourse with. [from early 14th c.]
Synonyms:coitize, go to bed with, sleep with; see also Thesaurus:copulate with
1730, William Forbes, The Institutes of the Law of Scotland (page 121)
And he who lies with another Man's Wife after she is married, even before her Husband had bedded with her, is guilty of Adultery, […]
Senses relating to a bed as a place or layer on which something else rests or is laid.
(transitive) To lay or put in any hollow place, or place of rest and security, surrounded or enclosed; to embed.
1810/1835, William Wordsworth, Guide to the Lakes
Among all chains or clusters of mountains where large bodies of still water are bedded.
(transitive) To set in a soft matrix, as paving stones in sand, or tiles in cement.
(transitive) To set out (plants) in a garden bed.
(transitive) To dress or prepare the surface of (stone) so it can serve as a bed.
(transitive) To lay flat; to lay in order; to place in a horizontal or recumbent position.
To settle, as machinery.
See bed/translations § Verb.
bed on Wikipedia.Wikipedia
BDE, DBE, DEB, Deb, Deb., EBD, Edb., deb
From Dutchbed, from Middle Dutchbedde, from Old Dutchbedde, from Proto-Germanic*badją.
bed (pluralbeddens, diminutivebedjie)
From Proto-Brythonic*bɨd, from Proto-Celtic*bitus. Cognates include Welshbyd and Cornishbys.
Ian Press (1986) A grammar of modern Breton, Berlin: Mouton de Gruyter, →ISBN, page 322
From GermanBeet(“bed for plants”), originally the same word as Bett(“bed for sleeping”), from Proto-Germanic*badją, cognate with Englishbed and Swedishbädd.
bad (3 sg. past subj.; 3 sg. and 2 pl. imperative)
From Proto-Germanic*badją(“dug sleeping-place”), from Proto-Indo-European*bʰedʰ-(“to dig”). Cognate with Old Frisianbed, Old Englishbedd, Dutchbed, Old High Germanbetti, Old Norsebeðr, Gothic𐌱𐌰𐌳𐌹(badi). The Indo-European root is also the source of Ancient Greekβοθυρος(bothuros, “pit”), Latinfossa(“ditch”), Latvianbedre(“hole”), Welshbedd, Bretonbez(“grave”).