The crime of assault varies from state to state (and under federal law), but is generally defined as intentionally putting another person in reasonable apprehension or fear of an imminent (immediate) harmful or offensive contact. The crime of assault may be committed even if there is no physical contact, as the criminal physical contact constitutes the separate crime of battery.
In Washington State, assault is defined under RCW 9A.36. Assault can be charged in varying degrees, with First Degree Assault being the most serious, involving a deadly weapon or intent to inflict great bodily harm, and Fourth Degree Assault being the least serious, typically involving offensive touching or putting someone in fear of harm. Washington does not require physical contact for an assault charge; the act of putting another person in fear of imminent harm can constitute assault. The state differentiates assault from battery, which is the actual physical contact, and often both charges are addressed together when physical harm occurs. It's important to note that the specifics of assault charges can be complex and may depend on the circumstances of the incident, the degree of injury, and whether a weapon was used.