Both ends, along with, and bilateral are all synonyms for both. Neither and one are antonyms of both. And here are 31 another word for both.
Along with, bilateral, both ends, both of them, both sides, collectively, conjoint, coupled, double, dual, each of the two, each, either, in tandem, simultaneously, the couple, the duo, the joint, the pair, the two entities, the two parties, the two, together, twice, two alike, two of, two together, twofold, twofold, and the two together are all synonyms for both.
Both synonym page has a variety of synonyms that differ in length. 2 synonyms with 4, 5, 12, and 14 letters and 4 synonyms with 6, 7, and 9 letters. 6 synonyms with 8 letters and 1 synonym with 10, 11, and 13 letters. For a total of 29 another word for both.
Both options seem equally appealing today.
They both enjoy the same activities.
She brought both books for discussion.
We can both work together effectively.