To send money abroad using GCash, you can use the 'Send Money' feature and select a remittance partner like Western Union or PayPal. You'll need to enter the recipient's details and the amount you wish to send. Be aware that fees may vary depending on the amount and the destination country, so it's best to check the GCash app for specific rates. Additionally, ensure that your GCash account is verified for higher transaction limits. For more information, visit the official GCash website or contact their customer support.