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This is a period, this is commonly used to end sentences.
Fun fact: Its also the letter "E" in Morse Code.

Person 1: "."
Person 2"."

Person 1: "How do you end a sentence?"
Person 2: "With a period."

. by Withered Rose April 10, 2022

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Friend: How are you?
You: .

. by JupiterAUTTP April 21, 2022

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. by 0IQBoy April 26, 2022

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When someone puts a dot/period ( . )
After u or someone has something,
They will usually mean they are shocked or surprised.

Kinda like putting “I-/ -“

“Yo my neighbor just killed my cat” -1
“.”-2

“Vro gelp ne
.
Bro help me*”-1
“Lol”-2

. by Your_Mom <3 May 1, 2022

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. by .123 May 10, 2022

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Hi.

. by That 1 Guy May 10, 2022

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. by The king Shinobi May 13, 2022