insect

In a scientific context, this is a precise biological classification. It refers strictly to the class Insecta, distinguishing them from other arthropods like spiders (arachnids) or centipedes (myriapods).

In common parlance, however, the term is often used loosely as a catch-all for any small, creeping or flying creature, regardless of its actual leg count. This colloquial usage can lead to technical inaccuracies when people refer to ticks or mites as "insects."

The word generally carries a neutral tone in nature documentaries but can shift toward negative connotations (nuisance, pestilence) when used in the context of home infestation or disease transmission.