Cast about for
Meaning: Try to find something
Example: The police cast about for fresh evidence.
Cast around for
Meaning: Try to find something
Example: He cast around for a chair, shoved some papers aside with a foot and perched on the edge of an armchair.
Cast aside
Meaning: Dispose, get rid of, ignore because you no longer like something or someone
Example: He cast aside the newspaper impatiently.
Cast off
Meaning: Dispose, get rid of
Example: The ship was scheduled to cast off at 8pm.
Cast off
Meaning: Untie a boat so it’s free to sail
Example: Mr Brown cast off his daughter when she married an old rich man.
Cast out
Meaning: Expel, reject
Example: The villagers had been cast out of their homes.
Cast round for
Meaning: Try to find something
Example: Finding himself with nine months to kill between school and university he cast round for a job.
Cast up
Meaning: Be left on the shore by the sea
Example: A whale bone was cast up on the beach.