Both Uses of

lapse
in
The Giver

...for each lapse the discipline wand came again, escalating to a series of painful lashes that left marks on Asher's legs.
p. 55.6 *

lapse = instance of not doing the right thing

And now his lapses are very few.
p. 55.9

lapses = bad behavior as a result of a lack of effort or diligence

Definitions:

(1) (lapse as in: a lapse in judgement)
a change in behavior or state--usually undesired such as a temporary failure
The exact meaning of this sense of lapse is often subject to its context:
- example indicating an undesired change in behavior -- "lapsed into alcoholism"
- example indicating that the change was short-term and due to a failure (often of effort or diligence) -- "a lapse in judgment"
- example indicating return to a previous undesired behavior or state -- "lapsed into her old bad habits"
- examples indicating a change in what was occurring where the change is not necessarily negative -- "There was a lapse in the conversation," or "She stopped talking as she lapsed into her own internal world."
(2) (lapse as in: allowed the policy to lapse)
end or terminate -- often of legal rights or of a person's association with an organization
(3) (lapse as in: after the lapse of many hours)
a period of time -- often a period that has passed