To become closed or blocked, preventing passage or entry, as in a physical obstruction or when someone is occupied or otherwise unavailable.
To no longer have any available space or opportunity due to something occupying it, thereby rendering one unable to proceed with other activities or engagements.
To fill up emotionally, such that worries or sadness overwhelm one's heart or mind, creating an intense feeling of being overwhelmed.
To be in a state where an opening is sealed or made impenetrable, as in a wound healing over or a door being securely locked.
To experience a situation where communication or connection is interrupted or halted, such as being on a phone call and unable to receive other calls.
Example:
道路は倒れた木で塞がっていた。
To obstruct someone's path by standing in front of them, preventing passage or entry.
To physically block someone's advance or movement by positioning oneself directly in their way.
Example:
その達成には非常に困難なことが立ちふさがっている。