This is the 192nd most frequent Estonian word.
järgmisel
"Järgmisel" means "next" or "on the next" in English.
In this sentence, 'järgmisel' modifies 'hommikul' (morning) in the adessive case, specifying the timing of the meeting.
Saame kokku järgmisel hommikul.
We will meet next morning.
Here, 'järgmisel' serves as an adjective describing 'kuul' (month) in the adessive case, referring to the time period of planning.
Planeerime kohtumise järgmisel kuul.
We plan the meeting for next month.
Here, 'järgmisel' is used as an adjective modifying 'nädalal' (week) in the allative case, indicating the time at which the action will occur.