Frontmost is a term used to describe the most forward or prominent position. However, there are several words that can be used in place of frontmost, including foremost, leading, frontal, primary, leading-edge, first, top, principal, and front. These words can be used interchangeably depending on the context of the sentence. For example, one may say "the foremost dancer in the performance" or "the leading edge of technology." Similarly, "the primary objective of the project" can be used in place of "the frontmost goal of the project." The use of synonyms provides a variety of options in language and allows for flexibility in communication.