How to spell SSHIM correctly?

If you meant to type "sshim" but ended up with a misspelling, here are a couple of suggestions for the correct word you might be looking for. Perhaps you intended to type "shim", which is a thin piece of material used to fill gaps or adjust the fit of something. Another possibility could be "swim", which refers to the action of moving through water by propelling oneself with one's limbs.