Marine/məˈriːn/ Definition 1 of 4Pro Tip 1/3Ecological Concerns Used to highlight issues impacting the ocean's ecosystem and creatures. Marine conservation efforts are increasing worldwide. Pro Tip 2/3Transportation Context Refers to the shipping industry and sea-related logistics. Marine traffic has been busier due to the new trade routes. Pro Tip 3/3Aquatic Sports Often associated with activities or sports taking place in the sea. She is interested in marine photography while diving.