Other forms: timelines
A timeline is a line showing events in the order they happened. Draw a timeline, a project timeline, the timeline of events.
In projects it has drifted to mean the schedule itself, so a slipping timeline means a late project. On social media the timeline is the feed of posts, ordered by an algorithm rather than by time.
1nountimelineA line showing events in the order they happened.
“The history teacher drew a timeline of the war on the board, from 1939 to 1945.”
timeline is a chart.
Time plus line, from the drawn line on which events are placed in order.
From time + line.
Etymology from Wiktionary, CC BY-SA