This is the 865th most frequent Russian word.
под
"Под" means "under" or "below" in English.
The word 'под' specifies a location, meaning 'under' or 'beneath' something in this sentence.
Мы встретились под мостом.
We met under the bridge.
The word 'под' in this context indicates something being subjected to a process or state, in this case, discussion.
Директор предложил проект под обсуждение.
The director submitted the project for discussion.
Here, 'под' is used in a culinary context to describe a dish served 'with' or 'under' a specific ingredient, like sauce.