半途 literally means 'halfway along a path' — 半 (bàn) means 'half', and 途 (tú) means 'road', 'journey', or 'course'. Together, they form a compound that refers to the midpoint of any process, journey, or activity — not just physical travel, but also abstract endeavors like studies, projects, or habits. It emphasizes being at an incomplete stage, often implying interruption or abandonment before completion.

The word is commonly used in formal or literary contexts, especially in set phrases like 半途而废 (bàn tú ér fèi, 'to give up halfway') or 半途折返 (bàn tú zhé fǎn, 'to turn back halfway'). While it can function as a noun ('the halfway point'), it frequently acts adverbially ('halfway', 'midway') modifying verbs — for example, in 半途停下 (bàn tú tíng xià, 'stop halfway'). It carries a slightly negative or cautionary nuance, suggesting incompleteness or lack of perseverance.