Definitions
A person who works or lives in space.
Word origin
From space + -er.
Used in a sentence
“The vertical wall was poured in two lifts, using two pairs of steel shutters which were bolted tightly onto 9-in. long wooden spacers.”
“It was the futile throwing back in the face of the Spacers their most keenly felt insult: their insistence on considering the natives of Earth as disgustingly diseased.”
“"How do I know I can trust you?" asked BKR. Grakker hesitated. "Spacer's oath," he said at last.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer1 curated clues
01“Gap holder”6 letters
Not quite right?
"Search similar patterns."
S_____