The phrase “a while” means a period of time. Some synonyms for “a while” are:
a short time: This is a straightforward synonym. It indicates a brief period. For example, “I’ll be back in a short time.” It implies a relatively quick span but is a bit more general than “a while”.
a moment: This suggests a very brief period, often an instant. “Wait a moment.” It conveys a sense of urgency or a quick pause.
a spell: This has a more old-fashioned or literary feel. “He was gone for a spell.” It can refer to a somewhat longer period than “a moment” but shorter than “a long time”.
a little while: This is similar to “a while” but emphasizes a slightly smaller amount of time. “I’ll be there in a little while.” It gives the impression of a shorter duration.
In conclusion, these synonyms for “a while” can be used interchangeably in many contexts, depending on the tone and specific meaning you want to convey.