Use 'seeing that' to introduce a reason or justification for an action or situation. Bring your swimsuit, seeing that we'll be near the beach.
Pro Tip 2/3
Preceding Cause
'Seeing that' often comes before the cause when explaining why something happened or will happen. They canceled the game, seeing that the field was flooded.
Pro Tip 3/3
Contextual Hint
Pay attention to the context, as 'seeing that' can change the direction of a conversation towards the reason behind it. Seeing that you're not ready, we'll leave in ten minutes.