No. It is the antonym of antagonist.
assistant, aide, associate, accomplice, comrade, companion, disciple, company, legion, friend, supporter, mate, follower
blood brother, friend, mate, ally, supporter, amigo
"The fruit ripened on the vine." "He ripped the paper in two."
The noun 'support' is an abstract noun as a word for comfort and emotional help, approval and encouragement; a word for the promotion or financial aid for a cause.The noun 'support' is a concrete noun as a word for something that bears the weight of something or keeps it upright; a word for something physical.
Adherent
supporter
yes, the word supporter is a noun
a female supporter = tomekhet (תומכת) a male supporter = tomekh (תומך)
Vine is monosyllabic.
Some choices: partner, helper, backup, aide, accomplice, supporter, collaborator, accessory
He swung from the vine, then dropped into the lake.
Yes, the word vine is a singular, common, concrete noun; a word for a plant, a thing.
Another name for wine is fruit of the vine. The Greek word for wine is oinos. Other names could be aperitif or champagne.
The Latin word for "vine" is vitis (-is, f.), which is the source of the modern word for grape-growing, "viticulture".
Some choices: aid, reinforce, help, sustain, facilitate, back, support
She remained his staunchest supporter throughout his political career.