atlantisch
Atlantic
Relating to the Atlantic Ocean, originating from it, or located on it.
Die atlantische Küste Portugals ist bei Surfern sehr beliebt.
Portugal's Atlantic coast is very popular with surfers.

Atlantic
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Atlantic
Relating to the Atlantic Ocean, originating from it, or located on it.
Die atlantische Küste Portugals ist bei Surfern sehr beliebt.
Portugal's Atlantic coast is very popular with surfers.

The adjective 'atlantisch' (Atlantic) is derived from the noun 'der Atlantik' (the Atlantic Ocean). The ending '-isch' is a very common way to form adjectives from geographical names.
Das Wetter wird vom atlantischen Tiefdruckgebiet beeinflusst.
The weather is influenced by the Atlantic low-pressure system.
The meaning depends heavily on the context. If it is about geography, weather, or animals, for example 'Küste' (coast) or 'Klima' (climate), the ocean is meant. If it is about politics or the military, for example 'Bündnis' (alliance) or 'Partner' (partner), the political alliance is meant.
Die atlantische Fauna ist sehr vielfältig.
Atlantic fauna is very diverse.
In its geographical meaning, 'atlantisch' (Atlantic) is often combined with nouns such as 'Küste' (coast), 'Inseln' (islands), 'Klima' (climate), or 'Meeresströmung' (ocean current).
Das atlantische Klima ist oft mild und feucht.
The Atlantic climate is often mild and humid.
In a political context, the most common combination is 'das atlantische Bündnis' (the Atlantic alliance), another term for NATO. 'atlantische Partnerschaft' (Atlantic partnership) is also a common phrase.
Die Staats- und Regierungschefs bekräftigten die Stärke der atlantischen Partnerschaft.
The heads of state and government reaffirmed the strength of the Atlantic partnership.
maritime
'maritim' and 'atlantisch' can both have to do with the sea and the coast. 'maritim' is general and refers to the sea, seafaring, or an atmosphere reminiscent of the sea. 'atlantisch' is much more specific: it refers to the Atlantic Ocean or to places located on it. The words can be confused because the Atlantic is, of course, a sea or ocean. As a simple guide: use 'maritim' for the sea in general, and 'atlantisch' for the Atlantic.

Auf der Reise lernen wir viel über die atlantische Küste Frankreichs.
On the trip, we learn a lot about France's Atlantic coast.
Das Restaurant ist maritim eingerichtet, mit Netzen und Bildern von Schiffen.
The restaurant has maritime decor, with nets and pictures of ships.