Which word that starts with 'o' and includes 'per' is the most popular word?A popular word for the combination you requested is 'operation'.
How many letters are in the longest word on this page?The word 'oversuperstitiousness' contains 21 characters.
What is an example of a interesting word that starts with 'o' and includes 'per'?Ranking as our favorite strange word on this list is 'operatively'. The definition of 'operatively' is as follows: "In an operative manner.". Source Oxford Dictionary.
What is the maximum number of words you could construct using words that start with 'o' and include 'per'?Altogether, there are 149 words.
What's the highest number of points you can get in Scrabble from this list of words starting with 'o' that contain 'per'?As there are plenty of words to pick from, your best bet is 'operably' scoring 15 points overall.