The word "邀请" is formed by combining the characters 邀 and 请. 邀 means to invite or solicit and includes the radical 辶, indicating movement or action related to inviting. 请 means to request or invite and includes the radical 讠, associated with speech or communication. Together, they create a compound word where both characters semantically reinforce the act of inviting, with 邀 emphasizing the proactive approach and 请 highlighting the polite or verbal aspect of the invitation.