What is the crossword answer for the clue: ___ system

ABO - a 3 letter word may be the answer you are looking for!

STAR - a 4 letter word may be the answer you are looking for!

SOLAR - a 5 letter word may be the answer you are looking for!

METRIC - a 6 letter word may be the answer you are looking for!

ORDER - a 5 letter word may be the answer you are looking for!

ISM - a 3 letter word may be the answer you are looking for!

METHOD - a 6 letter word may be the answer you are looking for!

REGIMEN - a 7 letter word may be the answer you are looking for!

FEUDAL - a 6 letter word may be the answer you are looking for!

SCHEME - a 6 letter word may be the answer you are looking for!

___ system

3 Character Answers:

ABO

ISM

NAV

4 Character Answers:

STAR

5 Character Answers:

CASTE

HONOR

ORDER

SOLAR

6 Character Answers:

FEUDAL

METHOD

METRIC

SCHEME

7 Character Answers:

REGIMEN