Webster's Revised Unabridged Dictionary · 1913

Soon

Soon (son) , adverb

[Old English sone, Anglo-Saxon sōna; compare OFries. sōn, Old Saxon sāna, sāno, Old High German sār, Gothic suns.]

1.
In a short time; shortly after any time specified or supposed; as, soon after sunrise.
Sooner said than done. — Old Proverb
As soon as it might be. — Chaucer
She finished, and the subtle fiend his lore Soon learned. — Milton
2.
Without the usual delay; before any time supposed; early.
How is it that ye are come so soon to-day? — Ex. ii. 18
3.
Promptly; quickly; easily.
Small lights are soon blown out, huge fires abide. — Shakespeare
4.
Readily; willingly; -- in this sense used with would, or some other word expressing will.
I would as soon see a river winding through woods or in meadows, as when it is tossed up in so many whimsical figures at Versailles. — Addison
Collocations (4)
As soon as or So soon as , immediately at or after another event. As soon as he came nigh unto the camp... he saw the calf, and the dancing. — Ex. xxxii. 19
Soon at , as soon as; or, as soon as the time referred to arrives. [Obsolete] I shall be sent for soon at night. — Shakespeare
Sooner or later , at some uncertain time in the future; as, he will discover his mistake sooner or later.
With the soonest , as soon as any; among the earliest; too soon. [Obsolete] — Holland

Soon , adjective

Speedy; quick. [Obsolete] — Shakespeare