take one's word for
see take someone at his or her word.
What’s The Word for More Than One Software?The word software is a mass noun because it can be used to refer to a mass (or nonspecific number) of computing programs or products. Mass nouns function as both singular and plural nouns. They can describe either one item, multiple items of the same type, or an entire category of items. Some examples include bread, rice, hair, garbage, and ice. It isn’t necessary to add …
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.