自己主張（じこしゅちょう）： self-assertion
自： previously covered here.
己： previously covered here.
主： previously covered here.
張： previously covered here.
主催（しゅさい）： sponsorship (i.e. conducting under one’s auspices); promotion; organizing; hosting; staging
主： already covered here.
催： give (a dinner); hold (a meeting); sponsor
on-reading サイ. kun-reading もよおす.
催す（もよおす）： 1. to hold (a meeting); to give (a dinner); to show signs of 2. to feel (sensation, emotion, etc)
民主党（みんしゅとう）： Democratic party
民： previously covered here.
主： previously covered here.
党： previously covered here.
亭主関白（ていしゅかんぱく）： 1. husband who rules the roost; domineering husband 2. the hectoring of the husband
亭： arbor; cottage; mansion; music hall; pavilion; restaurant; stage name; vaudeville
on-reading チン、テイ. no kun-reading.
主： already covered here.
関： already covered here.
白： already covered here.
Note:
亭主（ていしゅ） means 1. household head; master; host (e.g. of a tea gathering); innkeeper; owner (e.g. of a hotel) 2. husband
and
関白（かんぱく） is the chief adviser to the emperor.
so the husband is the chief adviser of the house (or something).
主演（しゅえん）：starring; playing the leading part
主：chief; lord; main thing; master; principal
on-reading シュ、シュウ、ス. kun-reading あるじ、おも、ぬし.
主（あるじ）：1. head (of a household); proprietor (of a store); proprietress; landlord; landlady; master (of a servant) (abbreviation)
主（おも）：1. chief; main; principal; important 2. main secondary or supporting role (in kyogen) (abbreviation)
主（ぬし）：1. head (of a household); leader; master 2. owner; proprietor; proprietress 3. subject (of a rumor, etc); doer (of a deed) 4. guardian spirit 5. husband (pronoun) 6. you (familiar language)
演：already covered here.
