ΘΔ - What does ΘΔ mean?

ΘΔ is slang for "Therian." See an example of how people use it.
When you see the symbol ΘΔ in someone's social media bio, it means they are a therian. You might see therians use this symbol on Twitter, TikTok, Instagram, and other platforms, to identify their kinship with an animal.

File:Wika Klingenberg.JPG - Wikimedia Commons

Replying to @_mausoliam_ Sasha literally means Alexander it's a strong

θΔ ꜰᴏxʟᴏʀᴇ ⨂ it/he's Profile

Caeser - Dicko ΘΔ - 🐺 (@boingboingm8) / X

Kit ΘΔ 🍥 and 2763 others on X: genuinely what does this mean / X

Solved 2.3 Show that the Riemann curvature tensor can be

🌙 lulu θΔ ✨ (@xlulubell) / X

Replying to @fenrisson Do you not know what defunding the police means

Wereshep OS ✊🏽✊🏾✊🏿θΔ - X (Twitter) Stats & Analytics

Profiles of (a) mean temperature (Θ − θcw)/θΔ, (b) mean square of

SOLUTION: General Organic Chemistry notes and solved problems - Studypool

Therian Poster Child ΘΔ 🔜 TFF (@fahstine) / X

cohost! - two wolves

cohost! - i googled ΘΔ because i did not know it meant therian, and the first result was a slang.net definition page with this at the bottom

Therian Poster Child ΘΔ 🔜 TFF (@fahstine) / X