Vocabulary

Deficient in quantity or number compared with the demand : not plentiful or abundant.

Intentionally absent <made himself scarce at inspection time>

1: examination into facts or principles : research

2: a request for information

3: a systematic investigation often of a matter of public interest

On

Involving or serving as an aid to learning, discovery, or problem-solving by experimental and especially trial-and-error methods <heuristic techniques> <a heuristic assumption>; also: of or relating to exploratory problem-solving techniques that utilize self-educating techniques (as the evaluation of feedback) to improve performance <a heuristic computer program>

1: to establish by legal and authoritative act; specifically: to make (as a bill) into law

2: act out <enact a role>

Leapaed, Leapt.

1: to spring free from or as if from the ground : jump <leap over a fence> <a fish leaps out of the water>

2 a: to pass abruptly from one state or topic to another b: to act precipitately <leaped at the chance>