occupied territories

OECD
Organisation for Economic Co-operation and Development

OK
is OK; okay is not

Only
we are prone to dropping this anywhere in a sentence. This is not good.

one
one should find an alternative unless one is mocking one's royal family; pref. you

one another
if more than two. Each other two only

on to
two words

Oscars
all awards in lower case: best film, best actor etc

over
do not substitute for more than.
Over (...and under) answer the question 'How much?'. More than (and fewer than) answer the question 'How many?

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