迎面 literally means 'to meet the face' — combining 迎 (yíng, 'to welcome, to face') and 面 (miàn, 'face, surface'). It functions primarily as an adverb describing motion or direction that comes straight toward the observer’s front — head-on, directly in front, or facing one squarely. It emphasizes immediacy and directness of approach, often implying physical proximity or confrontation.

This word is commonly used with verbs of movement (e.g., 走来, 吹来, 扑来) or perception (e.g., 看见, 感到). It frequently appears in descriptive writing and everyday speech when describing wind, people walking toward you, vehicles approaching, or even abstract things like criticism or challenges coming directly at someone. While it can appear in formal writing, it's equally natural in conversational contexts — especially when conveying vivid spatial awareness.