The word "over-seer" is often used as a synonym for "supervisor" or "manager." However, there are many other synonyms that can be used to describe this type of role. For example, "boss," "foreman," "administrator," and "director" are all similar in meaning to "over-seer." Other words that can be used to describe someone who is in charge include "leader," "controller," "executive," "organizer," and "captain." Each of these synonyms has its own unique connotations and implications, so choosing the right word to describe someone who oversees a team or project can be important in conveying the appropriate tone and message.