点 has many uses: (1) time — 三点 (3 o'clock); (2) 一点 or 有点 — a little bit; (3) verb — to order food (点菜); (4) to nod (点头).
mistakes
一点 vs 有点: 一点 is used after adjectives and means 'a bit more' (大一点 = a bit bigger). 有点 is used before adjectives and has a slightly negative tone (有点贵 = a bit expensive).