How to know "keys" for Entity::create()
If you look at the of baseFieldDefinitions method in class Term:

Here is a list of fields you can set in create Term:


tid : Term ID
uuid : The term UUID.
vid: The vocabulary to which the term is assigned.
langcode : The term language code.
name : Name of term.
description : description of term
weight : weight of term.
parent : Term parent.


Example: 

$term = Term::create([
    'name' =&gt; 'term name',
    'vid' =&gt; 'tags',
    'status' =&gt; 1,
    'tid' =&gt; 13,
    'uuid' =&gt; 1,
    'langcode' =&gt; 'en',
    'description' =&gt; 'tags description',
    'weight' =&gt; -12,
    //'parent' =&gt; parent tid
  ]);
  $term-&gt;save();