moving from one place to another and back again; "he traveled back and forth between Los Angeles and New York"; "the treetops whipped to and fro in a frightening manner"; "the old man just sat on the porch and rocked back and forth all day"
the form in which a text (especially a printed book) is published
an issue of a newspaper; "he read it in yesterday's edition of the Times"
all of the identical copies of something offered to the public at the same time; "the first edition appeared in 1920"; "it was too late for the morning edition"; "they issued a limited edition of Bach recordings"
corresponding in function but not in evolutionary origin; "the wings of a bee and those of a hummingbird are analogous"
similar or equivalent in some respects though otherwise dissimilar; "brains and computers are often considered analogous"; "salmon roe is marketed as analogous to caviar"