Etimology
Learned borrowing from Latin successus, from succēdō (“succeed”), from sub- (“next to”) + cēdō (“go, move”). Partly displaced native Old English spēd, whence Modern English speed.
noun
success (countable and uncountable, plural successes)
The achievement of one's aim or goal. [from 16th c.]
(business) Financial profitability.
One who, or that which, achieves assumed goals.
The fact of getting or achieving wealth, respect, or fame.
(obsolete) Something which happens as a consequence; the outcome or result. [16th–18th c.]
Examples
Antonym: failure
His third attempt to pass the entrance exam was a success.
a glowing success
Don't let success go to your head.
Scholastically, he was a success.
The new range of toys has been a resounding success.
She is country music's most recent success.
I suppose them as at the beginning of no meane endeavour, not a little alter'd and mov'd inwardly in their mindes: Some with doubt of what will be the successe, others with fear of what will be the censure; some with hope, others with confidence of what they have to speake.