It is called a cuticle not the finger kind though. It is there to the lip from overlapping together and merging with the bottom lip.
The indentation above the upper lip and below the nose is called the Philtrum.
Sound above the upper threshold of hearing is called ultrasound. It is typically defined as sound with frequencies higher than 20,000 Hz, which is the upper limit of human hearing.
Moustache
The upper part of a wave is called the crest. It represents the highest point of the wave above the rest position.
The indentation in the tail fin of a shark is called a "lobe." Sharks typically have a heterocercal tail, which means that the upper lobe is longer than the lower lobe, providing lift and propulsion. The shape and structure of the lobes can vary among different shark species, contributing to their swimming efficiency and maneuverability in the water.
The upper surface of water is called the water's surface or water level. It is the boundary where the water meets the air above it.
Apex
The bit above your lip is called the philtrum. It is the vertical groove that runs from the nose to the upper lip.
Often called god's thumbprint, that 'thing' is called the philtrum. Don't ask me why though!
The lip-like sensory organ located above the mouth is known as the prostomium.
The canal above the upper lip is known as the nasolabial canal, and it is a passageway that allows for the transmission of blood vessels and nerves between the face and nasal cavity. It plays a role in facial sensation and movement.
The upper level of a saturated rock is called the water table. This is the boundary between the unsaturated zone above and the saturated zone below, where all the pores and fractures in the rock are filled with water.