I have a noob question but if I reuse an address it will create a new utxo right ? So I will have two utxos in the same address ?
Think of your address as a physical wallet you carry your cash in. UTXOs are the paper bills you have in your wallet. Each bill is one UTXO. If you sell something and receive BTC in address #1, that's one UTXO. You receive your salary to the same address, UTXO #2. Your friend losses a bet and sends the amount to address #1 - UTXO #3. Reusing addresses isn't recommended, but I am just making a point.
UTXO, what does it mean?
It is Unspent outputs so if you have bitcoins in your wallet, you have UTXOs. Your wallet UTXO number will only become 0 if you have no bitcoin (no satoshi) in that wallet.
When you receive a first bitcoin transaction in your wallet, you have a first UTXO. Receive a second bitcoin transaction in your wallet, you have a second UTXO.
Let's not confused the OP by bringing wallets into the equation. I think OP is aware that transactions received in different addresses are separate UTXOs. His question was about how multiple transactions to the same address are to be called. As we have all said, it's the same thing - UTXOs.