This is the 11745th most frequent Turkish word.
geldiniz
"You came" or "You arrived" (formal/plural).
In this greeting, 'geldiniz' conveys respect and politeness as it's directed towards multiple people or formally towards one.
Hoş geldiniz.
Welcome.
Here, 'geldiniz' indicates the past tense in the second person plural or formal singular form, meaning 'you arrived'.
Derse geç geldiniz.
You arrived late to class.
In this example, 'geldiniz' also reflects the respectful or plural past action of arriving.