Two aspects of the same thing. / Two things that superficially appear to be opposites but are fundamentally similar.

plural of Old Believer

A small porthole-sized side window in the C-pillar of certain cars, popular in the 1970s.

plural of opera window

(slang) One who charges excessively high prices.

(religion) Any of those who separated from the official Russian Orthodox Church after 1666 as a protest against church reforms introduced by Patriarch Nikon between 1652 and 1666. They continue liturgical practices which predate the reforms.

Third-person singular simple present indicative form of throw out

A flat slab of chocolate, usually oblong in shape, which can be broken into smaller segments when being eaten; a chocolate bar.

simple past tense of throw out

present participle of throw out