accept (someone) to be what is claimed or accept his power and authority; "The Crown Prince was acknowledged as the true heir to the throne"; "We do not recognize your gods"
accept as legally binding and valid; "acknowledge the deed"
express obligation, thanks, or gratitude for; "We must acknowledge the kindness she showed towards us"
report the receipt of; "The program committee acknowledged the submission of the authors of the paper"
of the distant or comparatively distant past; "We met once long ago"; "they long ago forsook their nomadic life"; "left for work long ago"; "he has long since given up mountain climbing"; "This name has long since been forgotten"; "lang syne" is Scottish