1. (noun)oversight, lapse a mistake resulting from inattention
2. (noun)lapse a break or intermission in the occurrence of something "a lapse of three weeks between letters"
3. (verb)backsliding, lapse, lapsing, relapse, relapsing, reversion, reverting a failure to maintain a higher state
4. (verb)sink, pass, lapse pass into a specified state or condition "He sank into nirvana"
5. (verb)lapse end, at least for a long time "The correspondence lapsed"
6. (verb)lapse, backslide drop to a lower level, as in one's morals or standards
7. (verb)relapse, lapse, recidivate, regress, retrogress, fall back go back to bad behavior "Those who recidivate are often minor criminals"
8. (verb)lapse let slip "He lapsed his membership"
9. (verb)elapse, lapse, pass, slip by, glide by, slip away, go by, slide by, go along pass by "three years elapsed"
Definitions of 'lapse'
Webster 1913 Dictionary
1. (noun)lapse a gliding, slipping, or gradual falling; an unobserved or imperceptible progress or passing away,; -- restricted usually to immaterial things, or to figurative uses
2. (noun)lapse a slip; an error; a fault; a failing in duty; a slight deviation from truth or rectitude
3. (noun)lapse the termination of a right or privilege through neglect to exercise it within the limited time, or through failure of some contingency; hence, the devolution of a right or privilege
4. (noun)lapse a fall or apostasy
5. (verb)lapse to pass slowly and smoothly downward, backward, or away; to slip downward, backward, or away; to glide; -- mostly restricted to figurative uses
6. (verb)lapse to slide or slip in moral conduct; to fail in duty; to fall from virtue; to deviate from rectitude; to commit a fault by inadvertence or mistake
7. (verb)lapse to fall or pass from one proprietor to another, or from the original destination, by the omission, negligence, or failure of some one, as a patron, a legatee, etc
8. (verb)lapse to become ineffectual or void; to fall
9. (verb)lapse to let slip; to permit to devolve on another; to allow to pass
10. (verb)lapse to surprise in a fault or error; hence, to surprise or catch, as an offender
Definition of lapse 
