What does GEK stand for?

Custom Fiberglass, Alameda, CA - Manufacturer code for watercraft hull identification number (USCG)

Ganes Creek, AK - Location identifier - FAA (FAAL)

Geoelectrokinetograph (SAUS)

Geomagnetic Electrokinetograph - Equipment for exploring ocean depths

Yiwom - Language code (ETLW)