'咨询' (zī xún) is a compound verb meaning 'to consult' or 'to seek advice', and it can also function as a noun meaning 'consultation'. The first character 咨 (zī) originally meant 'to ask for opinions' and appears in classical texts; the second character 询 (xún) means 'to inquire' or 'to question'. Together, they emphasize a formal, purposeful exchange of information—typically with an expert, professional, or authority. It’s commonly used in contexts requiring expertise: medical, legal, academic, or technical matters.

This word carries a tone of seriousness and respect—it implies the seeker values the other person’s knowledge or credentials. It’s more formal than everyday verbs like 问 (wèn, 'to ask') and less casual than 找人聊聊 (zhǎo rén liáo liáo, 'to chat with someone'). You’ll see it on signs ('免费咨询'), in service websites ('在线咨询'), and in official communications. While it can be used in spoken Chinese, it’s especially frequent in written or professional settings.