中 is a line drawn straight through the center of a box — a flagpole through the middle of an enclosure, hitting the exact center. It means middle, center, and 'to hit the mark'.
中 is how China refers to itself: 中国 means 'the Middle Kingdom' — for most of its history, China saw itself as the center of the world. 中文 is the Chinese language, 中国人 is a Chinese person. You'll use 中 constantly. As a verb (zhòng, 4th tone) it means 'to hit the target'.
A line straight through the CENTER of a box — right in the MIDDLE.
中 plus 文 (language/writing) gives 中文 — Chinese. Plus 国 (country) gives 中国 — China. You're learning the language of the Middle Kingdom.