There are some things which are neither verifiable nor falsifiable, like God. If God is unchanging, permanent and all-pervasive then nothing we can do will ever give us a place where it is absent and therefore observable. So it is quite pointless to even talk of its unverifiable/unfalsifiable existence.
But there are things which are verifiable but have yet to be falsified, like gravity or the speed of light. What we have is a physical world that can be tested shown to work in a certain order to be able to call it a law. But there is no reason why it cannot be falsified, only that it has not been falsified.
From experience then we can say the world works in a certain way, the way it works holds true in most, if not all places. The chance that it might not hold true in some place we have yet to discover is not as important as the fact that it holds true in every place we have seen it. That, in itself, is our only judgement of the world.
We may make deductions (conclusions from general truth to a specific one) and inductions (conclusions from specific truth to a general one) but really they are all abductions, conclusions from probable observed outcomes of general and/or specific truths.
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