This is what's left behind when something moves.
What is a trace/copy?
This dependency is famous for its principles in alphabetical order.
What is binding?
This constraint prevents an argument from moving from one theta-position to another.
What is the theta-criterion?
The relationship between a node and everything reflexively dominated by its sister.
What is c-command?
This operation is responsible for building sentence structure from scratch.
What is Merge?
This is a space consuming but visually clear way to represent syntactic structure.
What is a tree?
This causes an element to show up in more than one place in the structure.
What is movement?
This constraint prevents an element from moving or Agreeing across another element of the same type.

What is Relativized Minimality?
Its sister is the head of the phrase.
What is the complement?
What is Agree?
This type of element can bear a theta-role and case.
What is an NP/DP?
This dependency and agreement are sometimes seen as two sides of the same coin.
What is case assignment?
The rule that clauses (e.g. in English) must have an overt subject.
What is the Extended Projection Principle?
Its sister and mother bear the same category.
What is an adjunct?
This operation ships structure to LF and PF.
What is Spell Out?
Nothing can escape this chunk of structure except through its head or specifier.
What is a phase?
The phenomenon whereby certain nominals (often but not always subjects) in certain languages (e.g. Spanish) can stay silent.
What is pro-drop?
The constraint that a phrase XP must have a head of category X.
What is endocentricity?
This part of a phrase projects its features
What is a head?
The operation involving movement to a case position.
What is A movement?
This is the atom of syntax.
What is a (syntactic) feature?
The phenomenon involving the position of the subject in (i):
(i) The rain seems to have stopped.
What is raising?
The rule that every syntactic operation must involve the root node.
What is the Extension Condition?
It is a maximal projection and so is its mother, but not its sister.
What is a specifier?
The operation that gives you (2) from (1):
(1) I can eat now.
(2) Can I eat now?
What is head movement?
The sequence of functional heads that are built on top of a lexical head of a given category.
What is an extended projection?
The phenomenon affecting the subject in (a):
(a) Ali started to pour the water into the bottle.
What is (obligatory) control?
The rule that makes the following sentence ungrammatical by preventing says from agreeing with Alice:
*I says that [Alice went to the store].
What is (phase-)locality?
One daughter, two mothers!
What is multi-dominance?
The operation underlying the examples in (a) & (b):
(a) Mary seems to be expected to appear smart.
(b) Who did Ali tell Rahman that Saurav saw Meena meet?
What is successive cyclic movement?