to be certain; to be positive; assuredly; definitely; to give recognition; to affirm; affirmative (answer)

definite; certain; fixed; to fix (on sth); to determine; to be sure; to ensure; to make certain; to ascertain; to clinch; to recognize; to confirm; OK (on computer dialog box)

to decide; to determine; to make up one's mind; decision (CL:個|个[ge4],項|项[xiang4])

to fix; to settle; to wangle

can't say for sure; maybe