Take up space is an idiom that means to occupy more physical or psychological space than necessary. There are many synonyms for this expression, including consume, occupy, fill, dominate, command, use, or monopolize space. The term can refer to things, people, or ideas that take up too much space and thus limit the opportunities for other things, people, or ideas to grow or thrive. For instance, clutter takes up space in a room, while a domineering personality takes up space in a conversation. In contrast, being considerate and sharing space equally can create harmony and balance in various situations.