From WordNet (r) 3.0 (2006):
lay
adj 1: characteristic of those who are not members of the
clergy; "set his collar in laic rather than clerical
position"; "the lay ministry" [syn: laic, lay,
secular]
2: not of or from a profession; "a lay opinion as to the cause
of the disease"
n 1: a narrative song with a recurrent refrain [syn: ballad,
lay]
2: a narrative poem of popular origin [syn: ballad, lay]
v 1: put into a certain place or abstract location; "Put your
things here"; "Set the tray down"; "Set the dogs on the
scent of the missing children"; "Place emphasis on a
certain point" [syn: put, set, place, pose,
position, lay]
2: put in a horizontal position; "lay the books on the table";
"lay the patient carefully onto the bed" [syn: lay, put
down, repose]
3: prepare or position for action or operation; "lay a fire";
"lay the foundation for a new health care plan"
4: lay eggs; "This hen doesn't lay"
5: impose as a duty, burden, or punishment; "lay a
responsibility on someone"