Oscar Mike means “On the Move”. Oscar and Mike are phonetic spellings of the letters “O” and “M.” Oscar Mike sometimes refers to On Mission as well.
It is a communications acronym designed to convey a large amount of information in a short period.

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Why People and Military use Communication Acronyms
The key objective is to speed up communication. The more time you spend activating radio frequencies, especially during military activities, the easier it is for the enemy to track your whereabouts.
Military communication acronyms are employed solely to shorten the amount of time radio frequencies are used. The longer you hold down the key on your phone, the easier it is for an opposing operator to utilize that signal to determine your precise location.

What Does Oscar Mike Mean in Military Vocabulary
In the military, “Oscar Mike” denotes that you are on your move to a location. You could take any mode of transportation or walk from your starting point to the rendezvous site.

Other Statements and Meanings Associated with Word Oscar
• Oscar Kilo – OK
• Oscar Bravo – On Target
Other Statements and Meanings Associated with Word Mike
• Mikes – Minutes
• Tango Mike -Thanks Much
• Tango Mike Mike – firefight is going bad
• Charlie Mike – Continue Mission / Continue on