certify - authenticate, confirm, state officially⏎
achievement - goal, objective, target⏎
array - collection, group, number (of)⏎
diversify - modify, develop wider range, adapt, extend activities⏎
attribute - quality, feature, speciality, credit, specialty⏎
bulletin - report, news⏎
commute - journey, travel a regular route⏎
commitment - promise, loyalty, agreement, duty, willingness⏎
directory - list, listing, database⏎