It means not guilty of that paticular charge.
If you were found not guilty, your charge was dismissed, or you were found guilty, the charge will remain on your record until you seek to have it expunged.
A guilty charge.
Guilty!
It is a permanent record - INCLUDING the NOT guilty judgement!
Because you are not guilty of the charge. Another reason is that you are guilty but you don't believe the government can prove guilt beyond a reasonable doubt and you want to take the case to trial and perhaps get a not guilty verdict. Still another reason is that you are guilty but you want to delay the day of reckoning as long as possible so as to try to work out a plea bargain.
"Beating" a criminal charge means you are found not guilty. There is always the chance that you will be found not guilty after trial. If the state's evidence is sparse, if you have a strong alibi, or there is some legal defect with the charge, the chances are good. You should speak with your attorney about your chances of not guilty in your specific case.
who was incharge of the orphanage that Annie stayed
It sounds from the question, as if the defendant was charged for TWO offenses. The one for which he was arrested, and the obstruction charge (when he apparently 'resisted' the arrest). . The question indicates that he was found not guilty of the original arrest charge, but WAS found guilty of obstructing the officer.
If you were found Not GUilty - no time at all, on THAT particular charge - except what you may have already served awaiting ytrial.
To relieve from a charge of fault or crime; declare not guilty: They acquitted him of the crime. The jury acquitted her, but I still think she's guilty.
A conviction by plea is where you plea "guilty" or "nolo contendre" (no contest) to a charge. The plea is treated as a conviction of that charge.