Final answer:
The words peculiar, odd, different, quirky, and unique have similar meanings and can be categorized as adjectives. They describe something that is distinct or unconventional.
Step-by-step explanation:
The words peculiar, odd, different, quirky, and unique do not describe individuals based on age, but rather convey similar meanings.
These words have generational, cultural, and geographical specificities and their meanings can change over time. For example, the word 'queer' originally meant something strange or odd, but later came to be associated with homosexuality.
The words in this list have similar meanings and can be categorized together as adjectives. Adjectives modify or describe nouns, and in this case, these words describe something that is distinct or unconventional.