on all fours
         adv 1: on hands and knees; "he got down on all fours to play
                  with his grandson"

English Dictionary: only if	by the DICT Development Group
From WordNet (r) 3.0 (2006) [wn]:
one-half n one of two equal parts of a divisible whole; "half a loaf"; "half an hour"; "a century and one half" Synonym(s): one-half, half
From WordNet (r) 3.0 (2006) [wn]:
only if adv never except when; "call me only if your cold gets worse" Synonym(s): only, only if, only when
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
All fours \All` fours"\ [formerly, {All` four"}.]       All four legs of a quadruped; or the two legs and two arms of       a person.          {To be}, {go}, or {run}, {on all fours} (Fig.), to be on the             same footing; to correspond (with) exactly; to be alike in             all the circumstances to be considered. [bd]This example             is on all fours with the other.[b8] [bd]No simile can go             on all fours.[b8] --Macaulay.
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Live \Live\, n.       Life. [Obs.] --Chaucer.          {On live}, in life; alive. [Obs.] See {Alive}. --Chaucer.
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Loft \Loft\, n. [Icel. lopt air, heaven, loft, upper room; akin       to AS. lyft air, G. luft, Dan. loft loft, Goth. luftus air.       Cf. {Lift}, v. & n. ]       That which is lifted up; an elevation. Hence, especially:       (a) The room or space under a roof and above the ceiling of             the uppermost story.       (b) A gallery or raised apartment in a church, hall, etc.;             as, an organ loft.       (c) A floor or room placed above another; a story.                         Eutychus . . . fell down from the third loft.                                                                               --Acts xx. 9.          {On loft}, aloft; on high. Cf. {Onloft}. [Obs.] --Chaucer.
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Onloft \On*loft"\, adv.       Aloft; above ground. [Obs.]                   She kept her father's life onloft.         --Chaucer.
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
{Anniversary day}. See {Anniversary}, n.          {Astronomical day}, a period equal to the mean solar day, but             beginning at noon instead of at midnight, its twenty-four             hours being numbered from 1 to 24; also, the sidereal day,             as that most used by astronomers.          {Born days}. See under {Born}.          {Canicular days}. See {Dog day}.          {Civil day}, the mean solar day, used in the ordinary             reckoning of time, and among most modern nations beginning             at mean midnight; its hours are usually numbered in two             series, each from 1 to 12. This is the period recognized             by courts as constituting a day. The Babylonians and             Hindoos began their day at sunrise, the Athenians and Jews             at sunset, the ancient Egyptians and Romans at midnight.                      {Day blindness}. (Med.) See {Nyctalopia}.          {Day by day}, or {Day after day}, daily; every day;             continually; without intermission of a day. See under             {By}. [bd]Day by day we magnify thee.[b8] --Book of Common             Prayer.          {Days in bank} (Eng. Law), certain stated days for the return             of writs and the appearance of parties; -- so called             because originally peculiar to the Court of Common Bench,             or Bench (bank) as it was formerly termed. --Burrill.          {Day in court}, a day for the appearance of parties in a             suit.          {Days of devotion} (R. C. Ch.), certain festivals on which             devotion leads the faithful to attend mass. --Shipley.          {Days of grace}. See {Grace}.          {Days of obligation} (R. C. Ch.), festival days when it is             obligatory on the faithful to attend Mass. --Shipley.          {Day owl}, (Zo[94]l.), an owl that flies by day. See {Hawk             owl}.          {Day rule} (Eng. Law), an order of court (now abolished)             allowing a prisoner, under certain circumstances, to go             beyond the prison limits for a single day.          {Day school}, one which the pupils attend only in daytime, in             distinction from a boarding school.          {Day sight}. (Med.) See {Hemeralopia}.          {Day's work} (Naut.), the account or reckoning of a ship's             course for twenty-four hours, from noon to noon.          {From day to day}, as time passes; in the course of time; as,             he improves from day to day.          {Jewish day}, the time between sunset and sunset.          {Mean solar day} (Astron.), the mean or average of all the             apparent solar days of the year.          {One day}, {One of these days}, at an uncertain time, usually             of the future, rarely of the past; sooner or later.             [bd]Well, niece, I hope to see you one day fitted with a             husband.[b8] --Shak.          {Only from day to day}, without certainty of continuance;             temporarily. --Bacon.          {Sidereal day}, the interval between two successive transits             of the first point of Aries over the same meridian. The             Sidereal day is 23 h. 56 m. 4.09 s. of mean solar time.          {To win the day}, to gain the victory, to be successful. --S.             Butler.          {Week day}, any day of the week except Sunday; a working day.                      {Working day}.             (a) A day when work may be legally done, in distinction                   from Sundays and legal holidays.             (b) The number of hours, determined by law or custom,                   during which a workman, hired at a stated price per                   day, must work to be entitled to a day's pay.