Words from the Civil War include:
· Oak Grove (Virginia), battle of
· Okolona (Mississippi), battle of
· Old Church (Virginia), battle of
· Olustee (Florida), battle of
· Opequon (Virginia), battle of
go to readbookonline.net and there will be letters from A-Z and click the letter o and it will show a lot of book titles that start with the letter o with their authors.
Oboe, ogle, once and ooze are 4 letter words. They begin with the letter o.
Ostracizes or Ostracized, Organizes or Organized, Obligates or Obligated, Overboard ...
ovation
There are no seven letter words from these letters.
The 5-letter word you can form from the letters d, t, o, e, o, m is "mood."
The six-letter word you can form with the letters O, S, A, C, I, and F is "fiasco."
Those letters will spell the seven letter word boombox.
O can be Ox and N can be Netts
The letters can be rearranged to form the 4-letter word "hook."
O. Capital letters start at 65, so as O is the 15th letter, it's 64+15 = 79. See related links for a table of all ASCII characters.
If you repeat letters you can make zanza.