Next to and Next

Next to adverb - Very close to but not completely.

Next and next to are semantically related. in adjacent topic. In some cases you can use "Next" instead the phrase "Next to" as an adjective or a preposition.

Next adjective - Being the one that comes immediately after another.

Next to and next are semantically related. Sometimes you can use "Next to" instead the word "Next" as an adjective or a preposition.