Keep v. t. : To care; to desire.

Keep v. t. : To hold; to restrain from departure or removal; not to let go of; to retain in one's power or possession; not to lose; to retain; to detain.

Keep v. t. : To cause to remain in a given situation or condition; to maintain unchanged; to hold or preserve in any state or tenor.

Keep v. t. : To have in custody; to have in some place for preservation; to take charge of.

Keep v. t. : To preserve from danger, harm, or loss; to guard.

Keep v. t. : To preserve from discovery or publicity; not to communicate, reveal, or betray, as a secret.

Keep v. t. : To attend upon; to have the care of; to tend.

Keep v. t. : To record transactions, accounts, or events in; as, to keep books, a journal, etc. ; also, to enter (as accounts, records, etc. ) in a book.

Keep v. t. : To maintain, as an establishment, institution, or the like; to conduct; to manage; as, to keep store.

Keep v. t. : To supply with necessaries of life; to entertain; as, to keep boarders.

Keep v. t. : To have in one's service; to have and maintain, as an assistant, a servant, a mistress, a horse, etc.

Keep v. t. : To have habitually in stock for sale.

Keep v. t. : To continue in, as a course or mode of action; not to intermit or fall from; to hold to; to maintain; as, to keep silence; to keep one's word; to keep possession.

Keep v. t. : To observe; to adhere to; to fulfill; not to swerve from or violate; to practice or perform, as duty; not to neglect; to be faithful to.

Keep v. t. : To confine one's self to; not to quit; to remain in; as, to keep one's house, room, bed, etc. ; hence, to haunt; to frequent.

Keep v. t. : To observe duty, as a festival, etc. ; to celebrate; to solemnize; as, to keep a feast.

Keep v. i. : To remain in any position or state; to continue; to abide; to stay; as, to keep at a distance; to keep aloft; to keep near; to keep in the house; to keep before or behind; to keep in favor; to keep out of company, or out reach.

Keep v. i. : To last; to endure; to remain unimpaired.

Keep v. i. : To reside for a time; to lodge; to dwell.

Keep v. i. : To take care; to be solicitous; to watch.

Keep v. i. : To be in session; as, school keeps to-day.

Keep n. : The act or office of keeping; custody; guard; care; heed; charge.

Keep n. : The state of being kept; hence, the resulting condition; case; as, to be in good keep.

Keep n. : The means or provisions by which one is kept; maintenance; support; as, the keep of a horse.

Keep n. : That which keeps or protects; a stronghold; a fortress; a castle; specifically, the strongest and securest part of a castle, often used as a place of residence by the lord of the castle, especially during a siege; the donjon. See Illust. of Castle.

Keep n. : That which is kept in charge; a charge.

Keep n. : A cap for retaining anything, as a journal box, in place.

Example:
should i Keep a boiled an egg in its shell to Keep overnight?

Taxonomy
donjon, castle, towers, shell, free encyclopedia, nobles, living quarters, the British Isles, Norman keep, fortress, thirteenth century, square, polygonal, round towers, England and Ireland, motte, the Tower of London, battering ram.

Defination from the web:
keeps. The keep of Vincennes protected by its own isolated enceinte ... Wikimedia Commons has media related to: Keeps. Castle architecture. Japanese castle buildings for tenshaku, the Japanese castle keep. Medieval architecture ...