vow
noun
a solemn promise, pledge, or personal commitment.
Used to describe an action that began in the past, has continued continuously, and is still in progress.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Apple Apple has been vowing to fix the broken TV user experience for years and there are new signs that it is getting closer to fulfilling that promise.
From Forbes ● Feb. 5, 2015