Article Headline 1

"Apple mocks Google's privacy issues with a new billboard".

Meanings:
1. Mock(verb) = to laugh at someone, often by copying them in a funny but unkind way.

2. Privacy(noun) = a state in which one is not observed or disturbed by other people.

3. Issue(noun) = an important subject  that people are arguing about or discussing.

4. Billboard(noun) = a very large board on which advertisements are shown, especially at the side of a road; a hoarding.

Difference Between 6: Phrasal Verb vs Idiom

Phrasal Verb is a verb and one or maybe two other words usually small words like up, off, to etc.
Examples:
sit down, stand up, look after etc
look after = to take care of
e.g. She is looking after her child.

Idiom is just a group of words that has special meaning to. It doesn't need to have a verb.
Example:
on cloud nine = really happy; overjoyed
Some idioms are a full sentence. And they could have a verb.
Example:
It takes two to tango.
Meaning: certain actions or activities cannot be performed alone or they needs two.
e.g. she may want to argue, but it takes two to tango and I won't stoop to her level.

Note: here again 'stoop to' is a phrasal verb meaning to lower your moral standards by doing something that is unpleasant, dishonest or unfair.

If one doesn't know if its a phrasal verb, idiom, expression, proverb, saying or any term then one might ask to nearby person or people: I'm not familiar with that term. Can you tell me what it means?
Because difference among these terms is not important. The meaning of the term is only necessary to use it correctly.

Difference Between 5: Marriage Anniversary vs Wedding Anniversary

Marriage refers to the relationship, the long term sharing of two lives.
Marriage Anniversary is the anniversary of the day since when two people in a relationship formally accepted to live with each other.

Wedding refers to the specific ceremony that unites two people in marriage.
Wedding Anniversary is the anniversary of the day on which the ceremony took place.

Note: Both idiomatic usages 'wedding anniversary' and 'marriage anniversary' mean the same except that the meanings of the word 'marriage' and 'wedding' are not same.