Anonymous“Consider the application of an S is a function of the word in agreement with plurality. Toward(s) is a prerposition; when the object of the preposition is plural, add the s for agreement in number.”
Anon, where did you get that from?
Sorry, but it is completely incorrect.
Below are some example sentences from Cambridge dictionary. Notice that "towards" (which that dictionary labels as chiefly British, while "toward" is marked as mainly American -- as Avangi and Alphecca Stars have already written in this thread) is followed by a singular noun in each sentence.
(towards to express relation)
They've always been very friendly towards me.
There has been a change in government policy towards energy efficiency.
He feels a lot of anger/hostility/antagonism/animosity towards his father.
A lot of people think that most newspapers are biased towards one particular political party.
(towards to express movement)
She stood up and walked towards him.
He leaned towards his wife and whispered, "Can we go home soon?"
She kept glancing towards the telephone.
The country seems to be drifting towards war.
There is a trend towards healthier eating among all sectors of the population.
(towards to express position)
Our seats were towards the back of the theatre.
I often get hungry towards the middle of the morning.
We're getting towards winter and it's getting dark earlier.
(towards to express purpose)
I'm saving up to buy a car, and Dad has given me some money towards it.
Would you like to make a contribution (= give some money) towards a present for Linda?