The bird flies against the background of sea waves and sunsetThe bird flies against the background of sea waves and sunset
The sun communicates with the sea through the cloudsThe sun communicates with the sea through the clouds
Sunset over a calm sea, the sun setting in the oceanSunset over a calm sea, the sun setting in the ocean
A sea bay with houses on the background of a clear blue skyA sea bay with houses on the background of a clear blue sky
Часть океана — большое водное пространство с горько-солёной водой. Большое количество чего-н. ( высок. ). Повальная смерть, эпидемия.