intransitive verb
1. obsolete : to enter into competition : try
advises me to strike in for some preferment — Jonathan Swift
2. obsolete : to associate as a confederate or collaborator
strike in with him and help him to dupe his father — John Dryden
3.
a. archaic : to fall into or express agreement
a shifting adversary … will strike in with any opinion — Richard Bentley †1742
b. obsolete : to prove compatible : fit in
4. : to intervene or interrupt in a sudden or unexpected manner
strike in with a foolish suggestion
5. : to disappear from the surface with subsequent internal effects
lived only a few days after the disease struck in
transitive verb
1. : imprint
presses adequate for striking in names and addresses
2.
a. : to draw (a line) from one point on the surface of a sheet to another point with a ruling machine
b. : to make (perforations that do not extend from edge to edge) in a sheet