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1. Of or relating to a bolt or screw with a head having a hexagonal socket: an Allen bolt; an Allen screw.
2. Of or relating to a usually L-shaped wrench or screwdriver that fits such a socket.

[Originally a trademark.]


1. (Placename) Bog of Allen a region of peat bogs in central Ireland, west of Dublin. Area: over 10 sq km (3.75 sq miles)
2. (Placename) Lough Allen a lake in Ireland, in county Leitrim


1. (Biography) Ethan. 1738–89, American soldier during the War of Independence who led the Green Mountain Boys of Vermont
2. (Biography) Sir Thomas. born 1944, British operatic baritone
3. (Biography) Woody. real name Allen Stewart Konigsberg. born 1935, US film comedian, screenwriter, and director. His films as an actor and director include Annie Hall (1977), Manhattan (1979), Hannah and Her Sisters (1986), Bullets over Broadway (1994), Vicky Cristina Barcelona (2008), and Blue Jasmine (2013)


(ˈæl ən)

1. Ethan, 1738–89, American soldier in the Revolutionary War: leader of the “Green Mountain Boys” of Vermont.
2. Frederick Lewis, 1890–1954, U.S. historian and editor.
3. Woody (Allen Stewart Konigsberg), born 1935, U.S. comedian, author, actor, and filmmaker.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.Allen - United States comedienne remembered as the confused but imperturbable partner of her husband, George Burns (1906-1964)
2.Allen - United States filmmaker and comic actor (1935-)
3.Allen - a soldier of the American Revolution whose troops helped capture Fort Ticonderoga from the British (1738-1789)Allen - a soldier of the American Revolution whose troops helped capture Fort Ticonderoga from the British (1738-1789)


Allen key
nInbusschlüssel® m
Allen screw
nInbusschraube® f
Allen wrench
n (US) → Inbusschlüssel® m
References in classic literature ?
Allen says, `Leave out the explanations, make it brief and dramatic, and let the characters tell the story'," interrupted Jo, turning to the publisher's note.
My squire, God's curse upon him, is better at unloosing his tongue in talking impertinence than in tightening the girths of a saddle to keep it steady; but however I may be, allen or raised up, on foot or on horseback, I shall always be at your service and that of my lady the duchess, your worthy consort, worthy queen of beauty and paramount princess of courtesy.
It was borne in upon my mind while I was meditating on Sunday night, as Sister Allen, who's in a decline, is in need of me.
Allen, who owned the chief of the property about Fullerton, the village in Wiltshire where the Morlands lived, was ordered to Bath for the benefit of a gouty constitution -- and his lady, a good-humoured woman, fond of Miss Morland, and probably aware that if adventures will not befall a young lady in her own village, she must seek them abroad, invited her to go with them.
The tune marched; and Miss Allen advanced with skirts extended and bowed profoundly to the engaged pair.
MY mission is, as Josiah Allen says, `to charm and allure.
Tupman, and the ladies: which reached a pitch of positive enthusiasm, when old Wardle and Benjamin Allen, assisted by the aforesaid Bob Sawyer, performed some mystic evolutions, which they called a reel.
The view taken by Allen and Sikes, amongst other scholars, is doubtless right, that these longer hymns are only technically preludes and show to what disproportionate lengths a simple literacy form can be developed.
The hymn must therefore be later than that date, though Terpander, according to Weir Smyth (16), may have only modified the scale of the lyre; yet while the burlesque character precludes an early date, this feature is far removed, as Allen and Sikes remark, from the silliness of the "Battle of the Frogs and Mice", so that a date in the earlier part of the sixth century is most probable.
If thou hast already disposed of them all between thy Allen and thy Lyttleton, steal them a little while from their bosoms.
Jukes reflected rapidly that this second mate was a mean little beast, and in his heart he wished poor Jack Allen had never smashed himself up in the coal-lighter.
Allen, a buxom and cheerful person, who relieved the lady of some of her household cares.