Ultraman Geed Pre-Air Special Episode Trailer was uploaded today on Tsuburaya Productions's Official YouTube Channel. The description of the video revealed the catchphrase of Protagonist Riku Asakura (Ultraman Geed) → 「ジーッとしてても、ドーにもならねぇ！」(Romaji: Jiitto toshite temo, do ni mo nara ne! / English: Nothing will happen just by standing!).
By taking the first word Jitto's (standing) "Jii" (ジー） & "do"（ド） (nothing) and adding both will make "Jiido"（ジード）. Jiido is the actual pronunciation of Geed. It might not highlight that much when you read it in Romaji, but when you see the actual Japanese Script, the name is properly highlighted in the catchphrase.