strike a blow Synonyms

lunge be ready to back up be there for someone be to the advantage of be willing to support come to help come to succour come to the help of confer a favor confer a favour do a favor for someone do a helpful act do a helpful act for do a helpful act for someone do a kind act do a kind act for do a kind act for someone do a kind deed for be of help to be happy to help be glad to lend a hand bear a hand bring to the table come to someone's rescue do a service do someone a favour contribute to be of use to be useful to do a favour do a favor do a good turn do a kindness be of assistance to be of service to someone do someone a favor back somebody up be advantageous to do as an act of kindness