1 to abandon

2 to discard

3 to renounce

4 to dump (sb)

1 to renounce

2 to abandon

3 to give up

1 to discard

2 to abandon

1 to become invalid

2 to cancel

3 to delete

4 to nullify

1 to give up halfway (idiom); leave sth unfinished

1 not to reject a word because of the speaker (idiom, from Analects); to judge on the merits of the case rather than preference between advisers

1 to stand by (sb) (idiom)

2 steadfast loyalty

1 to reject a word because of the speaker (idiom, from Analects); to judge on preference between advisers rather than the merits of the case

1 chance remarks can lead to public execution (idiom)

1 to waste all one's previous efforts (idiom)

2 all that has been achieved goes down the drain