waarheen
Waarheen is a Dutch interrogative adverb meaning "to where" or "to what destination." It is used to ask about the destination or direction of movement, typically in questions about where someone or something is headed. For example: "Waarheen gaat deze trein?" or "Waarheen ben je onderweg?"
Etymology and structure: Waarheen is a fused form of waar (where) and heen (to there), with heen
Usage and notes: Waarheen is primarily used in questions, including both direct questions and indirect questions,
See also: Dutch question words, where-questions in Dutch, movement particles heen and naartoe.