How do you spell Striving

Available Definitions:
1)   - a. & n. from Strive.
2)  v. i. - To struggle in opposition; to be in contention or dispute; to contend; to contest; -- followed by against or with before the person or thing opposed; as, strive against temptation; strive for the truth.
3)  v. i. - To vie; to compete; to be a rival.
4)  n. - An effort; a striving.
5)  n. - Strife; contention.