Tall buildings are becoming more common in urban areas as cities expand upwards. However, there are many synonyms for the phrase "tall building" that can be used to add variety to written and spoken language. Some of the synonyms include high-rise, skyscraper, tower, spire, edifice, structure, and landmark. Each of these terms describes a building that reaches great heights and can be visually striking. Depending on the context, certain synonyms may be more appropriate than others. For example, "spire" may be more suitable for a religious building, while "high-rise" may be more commonly used to describe a residential or office tower.