The antonyms for the word "locks out" are "lets in," "allows access," and "opens up." When we lock something out, we prevent people from entering or accessing it. In contrast, when we let something in, we enable people to access it freely. For instance, a business owner may choose to lock out certain employees from a restricted area, but they may also choose to let in visitors to the same area. Similarly, a homeowner may lock out intruders, but they may let in friends and family members. Therefore, it's essential to understand both the antonyms and synonyms of a word to use it accurately and effectively in writing and speaking.