stumble - stagger, lurch, misstep, trip-up, trip, trip (over/up), slip, lose one’s balance, lose/miss one’s footing, teeter, dodder, hobble, move clumsily, blunder, totter, falter, hesitate, stammer, speak haltingly, stutter, fluff/flub one’s lines, bumble, slip up, trip up, hit

through - in and out the other side, from one end to another, from one side to the other, through and through, into and out of, to the other side of, to the far side of, from one side to the other of, using, by dint of, on account of, thanks to, owing to, because of, by virtue of, by way of, by means of, via, as a result of, as a consequence of, until/to the end of, all through, for the duration of, for the whole of, throughout