when wishing for luck, or
when telling a lie (and attempting to escape the moral and other consequence of that lie).
To put the middle finger across the index finger, especially
To attempt, endeavour, try
To try to acquire or gain; to strive after; to aim at.
To try to find; to look for; to search for.
To try to reach or come to; to go to; to resort to.
To navigate through a stream.
To ask for; to solicit; to beseech.
The operation of navigating through a stream.