For a moment is a common phrase used to indicate a brief period of time. However, there are many synonyms that can be used instead of this phrase to add variety to your writing. Some possible options include "briefly," "momentarily," "temporarily," "fleetingly," "transiently," "momentarily," "intermittently," "sporadically," "in passing," and "fleeting glimpse." Each of these words can be used to convey a slightly different meaning, so it is important to choose the one that best fits the context of your sentence. Whether you are writing a story, an essay, or a blog post, using synonyms for "for a moment" can help keep your writing fresh and interesting.