1. similar to or in keeping with something else
Professional
Social
the new system will operate along the same lines as the old one
If something is said to be 'along the lines of' something else, it is considered to be similar to it or made to resemble it. It can be something that sounds, looks feels, or tastes similar. You can use this in any context, and to talk about anything, and it can be used in social or professional contexts.