They called it a comet, 'for lack of' a better term/word. [=because they could not think of a better term/word for it]
His honesty, or 'lack thereof', is the real problem. [=the real problem is his lack of honesty]
There was 'no lack of' interest in the proposal. [=there was much interest in the proposal]
(..) Yes it's really nice. Here... Identity in the name of Constantini Lionel born in Moulins, March . Registration certificate, driving license. The Boudriard Institute lacks virtues. What's this all about? The Boudriard Institute of the blind youth. Pigot's daughter worked here before she disappeared. (..)1981 To Kill a Cop