This is the 211th most frequent Chinese word.
习
To study; to practice; habit.
Here, '习' is used as part of the word '学习' (study or learn), where it conveys the meaning of learning or practicing.
学习需要毅力和坚持。
Learning requires perseverance and persistence.
'习' is used in '习字' (practice calligraphy), emphasizing repetitive practice or studying of a particular skill.
这位学生一直在努力习字。
This student has been diligently practicing calligraphy.
'习' is used in '习惯' (habit), indicating something practiced or accustomed to over time.