"Attend to" is a commonly used expression that means to take care of something or someone. However, if you want to express the same idea, there are numerous other words you could use. For instance, you could use the synonyms 'look after' or 'take charge of' to convey the same meaning. Alternatively, you could use 'tend to,' 'care for,' 'handle,' 'manage,' 'supervise,' or 'oversee.' Each of these alternatives can be used in place of "attend to" to give your writing variety and avoid repetition. So, whether you are writing a school assignment or a business email, using synonyms for "attend to" will make your writing more interesting and appealing.