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keep(s) (an older person) company – p.v. to spend time with someone who would be alone if you were not there
toy – n. something a child plays with
artificial intelligence – n. the power of a machine to copy intelligent human behavior
companion – n. a person or animal you spend time with or enjoy being with
remind(ing) – v. to cause someone to remember something
cognitive – adj. of, relating to, or involving conscious mental activities (such as thinking, understanding, learning, and remembering
linguistic – adj. of or relating to language or linguistics
affordable – adj. able to be paid for at a low cost
elderly – adj. old or rather old
dementia – n. a mental illness that causes someone to be unable to think clearly or to understand what is real and what is not real
Alzheimer's (disease) – n. a disease of the brain that causes people to slowly lose their memory and mental abilities as they grow old
sake – n. used in phrases with for to say that something is done for a particular purpose or to achieve a particular goal or result
