Definitions
There are 2 meanings of the phrase
For Sure.
For Sure - as an adverb
Definitely or positively (`sure' is sometimes used informally for `surely')
Example: "The results are surely encouraging"
Synonyms (Exact Relations)
certainlyfor certainsuresure as shootingsurelyFor Sure - as an adjective satellite
Not open to doubt
Example: "She wanted to go; that was for sure"
Example Sentences
"I will come to the party, for sure."
"He will definitely win the race, for sure."
"There's no doubt about it, she is for sure the best candidate."
"You can rely on him, for sure."
"Let's go to the beach tomorrow, for sure."