rafters is a form of:

Instance



noun
1.
~ (of something) (an example, a step in proceeding, occasion, a case, illustration, specimen prototype) an instance of carelessness ការកើតមានឡើងម្ដង, at the instance of ការជម្រឺត, for instance ឧបមាដូចជា
Example: I can quote you several instances of her being deliberately rude.
2.
(បច្ចេកទេស) ឧទាហរណ៍ court of the first instance តុលាការដំបូង
ENGLISH MEANING
noun
1.
The act or quality of being instant or pressing; urgency; solicitation; application; suggestion; motion.
2.
That which is instant or urgent; motive.
3.
Occasion; order of occurrence.
4.
That which offers itself or is offered as an illustrative case; something cited in proof or exemplification; a case occurring; an example.
5.
A token; a sign; a symptom or indication.
verb
1.
(TRANSITIVE) To mention as a case or example; to refer to; to cite; as, to instance a fact.
2.
(INTRANSITIVE) To give an example.
1.
case, example, illustration, occurrence, representation, sample, situation, specimen