All 4 Uses of

intervene

in

Great Expectations

What lay heaviest on my mind was, the consideration that six days intervened between me and the day of departure; for I could not divest myself of a misgiving that something might happen to London in the meanwhile, and that, when I got there, it would be either greatly deteriorated or clean gone.†
Chpt 19

intervened = got involved or came between

For the present, under the circumstances, we deemed it prudent to make rather light of the matter to Trabb's boy; who, I am convinced, would have been much affected by disappointment, if he had known that his intervention saved me from the limekiln.†
Chpt 53 *

intervention = get involved; or come between

If the wind and the rain had driven away the intervening years, had scattered all the intervening objects, had swept us to the churchyard where we first stood face to face on such different levels, I could not have known my convict more distinctly than I knew him now as he sat in the chair before the fire.†
Chpt 39

If the wind and the rain had driven away the intervening years, had scattered all the intervening objects, had swept us to the churchyard where we first stood face to face on such different levels, I could not have known my convict more distinctly than I knew him now as he sat in the chair before the fire.†
Chpt 39

Definitions:

(1) (intervene as in: intervened in the war)
the process of getting involved to influence an outcome
The exact meaning of intervention can depend upon its context. For example:
- "intervention program for at-risk youth" -- a process of trying to influence the direction of someone's life
- "medical intervention" -- action taken to improve a medical outcome
- "military intervention" -- interference by a government in affairs of another government (in this case to interfere militarily)
- "had a family intervention" -- an organized meeting of family members to encourage someone (who is often surprised) to recognize and work at solving a problem such as substance abuse
(2) (intervene as in: in the intervening years)
something between two other things -- especially the passage of time between two events
(3) (meaning too rare to warrant focus)
Much more rarely, intervene can mean:
in various senses, including:
- to verbally interrupt -- as in "Not now!' she intervened."
- to be physically between -- as in: "You can't walk from one hill to the other because an impassable river intervenes."