The one Buddha-yāna. The One Vehicle, i.e. Mahāyāna, which contains the final or complete law of the Buddha and not merely a part, or preliminary stage, as in Hīnayāna. Mahāyānists claim it as the perfect and only way to the shore of parinirvāṇa. It is especially the doctrine of the 法華經 Lotus Sūtra; v. 大乘.

A Dictionary of Chinese Buddhist Terms, William Edward Soothill and Lewis Hodous

The Mahāyāna, or one-Buddha vehicle, especially the teaching of the Lotus Sūtra.

A Dictionary of Chinese Buddhist Terms, William Edward Soothill and Lewis Hodous

唯一能令人成佛的教法。

陳義孝編, 竺摩法師鑑定, 《佛學常見辭彙》

（術語）唯一成佛之教法。是法華經所說。法華經方便品曰：「十方佛土中，唯有一佛乘。」同品曰：「但以一佛乘故，為眾生說法。」同品曰：「於一佛乘，分別說三。」金剛頂一字頂輪王儀軌經曰：「十方剎土中，唯有一佛乘如來之頂法，等指諸佛體，是故名智拳。」

丁福保《佛學大辭典》

One Buddha Vehicle  一佛乘  Also known as Supreme Vehicle. In Buddhism, the Five Vehicles are established to facilitate us to understand the reality of Buddhahood. The teachings of One Buddha Vehicle is the ultimate, perfect and complete truth of Buddha, which is unconceivable and beyond words, as stated in the Lotus Sūtra.

漢英-英漢-英英佛學辭典字庫