noun
- An example of a timeline is what a policeman will construct to figure out a crime.
- An example of a timeline is a listing of details regarding an important time in history.
The definition of a timeline is a list of events in the order that they happened.
timeline

- a chart, table, etc. of historical dates and events in chronological order, typically including summaries and illustrations
- any chronological summary or listing of historical or planned events
Also written time line
timeline

noun
- A schedule of activities or events; a timetable.
- a. A chronology.b. A representation or exhibit of key events within a particular historical period, often consisting of illustrative visual material accompanied by written commentary, arranged chronologically.
timeline

Noun
(plural timelines)
- a graphical representation of a chronological sequence of events (past or future); a chronology
- a schedule of activities; a timetable
Verb
(third-person singular simple present timelines, present participle timelining, simple past and past participle timelined)
- To analyse a sequence of events or activities.
- To display such a sequence graphically.