Wiktionary
n. (context business English) A call to potential providers of goods and/or services to register interest in supplying them. Commonly a document describing requirements or specifications and seeking information from potential providers that demonstrate their ability to meet those requirements.
Usage examples of "expression of interest".
Then with an expression of interest he laid down his cigarette, and carrying the cane to the window, he looked over it again with a convex lens.
Monte Cristo looked at her with an indescribable expression of interest and pity.
She might have ordered the redhead's immediate death as an example to the others, except that Arakasi's earlier expression of interest in the barbarians made her pause.
A square brown face glanced down at him, with no particular expression of interest, then looked back to the horse the man was tending.
He could sense the smile hidden behind the bland expression of interest shown by Leyladin, but he nodded at the ginger-bearded overmage to continue.
It was from Larry West, and after the first few lines Eric's face lost the absent look it had worn and assumed an expression of interest.
Kerian took care to show the high king only a mild expression of interest.
Watching the man's face closely he thought he saw a momentary expression of interest at mention of the town.
Latham had just enough time to look at it and feign an expression of interest before Nemov entered the room.
Upon my expression of interest she had been given to me as a part of my portion of the loot.
In the situation, as I assessed it, either she should have been given to me, upon my expression of interest, or I should have paid something for her in increments of silver tarsks, something over the price Msaliti had paid.
He turned and beheld the speaker, whose color had changed to a deadly paleness, and whose lips quivered, gazing after him, with an expression of interest which immediately recalled him to her side.
All this time Brad had been scribbling, looking up from time to time with an expression of interest.