keep in

verb (mainly adverb)

(intr; also preposition) to stay indoors
(tr) to restrain (an emotion); repress
(tr) to detain (a schoolchild) after hours as a punishment
(of a fire) to stay alight or to cause (a fire) to stay alight
(tr, prep) to allow a constant supply ofher prize money kept her in new clothes for a year
keep in with to maintain good relations with
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012