demonstrative
[adjective]
showing no restraint in expressing one's feelings, particularly of love
demonstrator
[noun]
a teacher or teacher's assistant who demonstrates the principles that are being taught
extraneous
[adjective]
irrelevant, unnecessary, or unrelated to the matter or subject at hand
extravagant
[adjective]
making exaggerated or overly ambitious claims, promises, or statements that are often not grounded in reality
to congregate
[verb]
to come together in a group, often for a specific purpose or activity
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