In computer network engineering almost always we use different definitions/wordings to explain same thing. In this post, I will give you some examples, please add whatever else you remember in the comment box below , we can discuss them there.
Actually all are the same thing. VPWS stands for virtual private wire service , VLL stands for virtual leased line and EoMPLS stands for Ethernet over MPLS.
What does PE-CE mean in the context of MPLS ? What is CE , P and PE device in MPLS and MPLS VPN ? These are foundational terms and definition in MPLS.