Stuart, Beukelman & King identified the most common words used during conversations by two groups of older adults (ages 64-74 and 75-85). They found that the top 250 words accounted for 78% of all words used, and the most frequently used 179 words (used by at least 8 out of 10 people in each age group) accounted for 72% of words. This list of 179 common words was compiled alphabetically from the study.