local standard of rest
a frame of reference for a portion of the universe in which the mean motion of nearby stars is zero.
3 Easy Tips For Writing Realistic DialectsMany writers use dialects to enhance realism in their stories, especially for characters in specific locations. However, it’s easy to overuse or misuse dialects if you aren't careful. To use them correctly, there are a few guidelines to keep in mind.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019