The word "我们" is formed by combining the character "我" (wǒ), which means "I" or "me", with the character "们" (men), which is a grammatical suffix used to denote plurality for personal pronouns and some nouns. In this specific combination, the suffix "们" is attached directly to the singular pronoun "我", transforming its meaning from the singular "I" into the collective "we" or "us", indicating a group that includes the speaker.