Difference between sale and sales

Sales is plural of sale.

The employee only made one sale today because he only had a single customer.

The employee made many sales today because the store was very busy.

"Sales is plural of sale."

So is a 'sale engineer' sells only one item; and a "sales engineer" sells more than one?

Sales engineer is the correct version. A sales engineer is someone that assists an actual salesperson with the technical aspects of the product they are selling, such as with computers or computer software.

So, in this case, sales is plural because the engineer works on more than one sale. Sale engineer isn't the proper usage.

JT2010Sales engineer is the correct version. A sales engineer is someone that assists an actual salesperson with the technical aspects of the product they are selling, such as with computers or computer software.

So, in this case, sales is plural because the engineer works on more than one sale. Sale engineer isn't the proper usage.

What if the e

Sales is used for the abstract noun meaning "relating to selling." Even if the person is responsible only for one product or one customers, the title is still sales engineer.

You could, I suppose, tease a co-worker by calling him a "sale engineer" if he had only one client, but you would be playing with language in doing so.

Grammar GeekSales is used for the abstract noun meaning "relating to selling." Even if the person is responsible only for one product or one customers, the title is still sales engineer.

You could, I suppose, tease a co-worker by calling him a "sale engineer" if he had only one client, but you would be playing with language in doing so.

Than

So, JT2010, according to your logic here, we should use "students math club" instead of "student math club," and "Women Union" instead of "Woman Union," should we? Thanks.

JT2010Sales engineer is the correct version. A sales engineer is someone that assists an actual salesperson with the technical aspects of the product they are selling, such as with computers or computer s

From what I know (and someone please chime in to correct me if I'm wrong) both student and woman are function as adjectives, modifying club and union.

I would recommend, therefore, using "student math club" and "Woman Union" because adjectives can never be plural in English.

Hello,

I believe that we have been talking about compound noun, in which the preceded word could be singular or plural and acts as an adjective. I also believe that it is up to people, who want to convey their message / idea, to sensibly use whatever mode they want. Let us look at the compound nouns in questions, 'sale engineer' vs. 'sales engineer', to see if we can get their messages.