signal - signál

noun - a sound, gesture, action etc. that is meant to give a message to somebody, warn, command etc.

shadow - stín (člověka apod.)

noun - a dark shape that is made by an object or person etc. when it blocks out light

 

sign - znamení, posunek

noun - a body movement with a meaning; something that is seen and has a special meaning for somebody

monument - památník

noun - a building or a statue which is built as a memory of a famous person or event

match - zápalka, sirka

noun - a small wooden thing with a special substance at the end, it is used to make fire

 

tundra - tundra

noun - large flat Arctic regions of the Northern Hemisphere where the earth below the ground is always frozen

overtake - předjíždět, předjet

verb - to go past a car that is going in the same direction but at a lower speed

lens - čočka (optická, brýlová), brýlové sklo, zorník, optika (přístroje)

noun - a round piece of glass with curved sides which is used in telescopes, microscopes, binoculars, or glasses

label - nálepka, štítek, cedulka

noun - a piece of paper fastened to an object, saying what it is, how much it cost etc.

drill - vrtačka

noun - an instrument that is used to make small round holes into a wall, piece of wood etc.

 

ell - loket (míra)

noun, dated - a unit that was used to measure length, it is about the length of a man's arm

drop out - odpadnout, vypadnout

verb - to stop doing something before you have finished it; to leave an activity before it is finished

hoe - motyka

noun - a tool with a long handle that is used in the garden to turn the soil etc.

 

hydrogen - vodík

noun - (the chemical element of atomic number 1) the lightest gas, it is colourless and burns very easily

 

head first - po hlavě, hlavou napřed, střemhlav

adverb - jumping or falling in a way that the head is lower than the rest of the body