JOIN FORCES WITH, join up with, form an alliance with, ally with, align oneself with, link up with, make common cause with.
→ lot
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phrasal : to join as an associate : share the fate of
reluctant to throw in their lot with a new society — Farmer's Weekly (South Africa)
* * *
throw in one's lot with
To choose to share the fortunes of
● lot
* * *
Idecide to ally oneself closely with and share the fate of (a person or group)
II
see lot
Useful english dictionary. 2012.