Velkommen hjem.

This is one of the most important things to notice.

• hjem = home, in the sense of toward home or to home
• hjemme = at home

So:

• Velkommen hjem = welcoming someone who has come home
• Du er hjemme = you are at home

English uses home for both ideas, but Danish usually distinguishes them.

Velkommen is originally an adjective meaning welcome. In this expression, it functions like a greeting formula.

So grammatically it comes from the adjective, but in actual use Velkommen hjem works almost like a ready-made expression.

Because velkommen is the common singular form of the adjective.

The adjective changes form depending on gender and number:

• common gender singular: velkommen
• neuter singular: velkomment
• plural / definite: velkomne

In Velkommen hjem, the normal form when addressing one person is velkommen.

Yes, you can. As a greeting, Velkommen hjem is often used very freely, even to more than one person.

That said, in ordinary adjective agreement Danish does have a plural form velkomne. For example:

• I er velkomne

So the set greeting can be a little less strict than the fully expanded grammar might suggest.

Not exactly.

• Velkommen hjem specifically means someone has come home
• Velkommen tilbage means welcome back more generally

So if a colleague returns to the office, you might say Velkommen tilbage. If someone returns to their home after a trip, Velkommen hjem is especially appropriate.

Yes. It can be literal, but it can also be broader or emotional.

For example, it can be used when someone returns to:

• their family home
• their hometown
• their home country
• a place that feels like home

So the phrase can sound warm and personal, not just physically descriptive.

A useful approximation is yem.

Two important points:

• the hj at the beginning does not sound like English h + j
• it starts with a sound like y in yes

So hjem is much closer to yem than to anything like hee-jem.

A rough learner-friendly approximation is:

VEL-kum-men yem

A few notes:

• vel sounds somewhat like well
• the middle of velkommen is closer to kum than to English come
• hjem sounds roughly like yem

If you want to sound more natural, the rhythm matters too: the main stress is on the second syllable of velkommen.

It is neutral and very common. You can use it in many situations:

• to family
• to friends
• to a partner
• sometimes to colleagues, depending on context

It usually sounds warm and friendly rather than formal.