a very small amount of something —sometimes used before another noun
something (such as a mark or an object) which shows that someone or something was in a particular place
a line drawn by a machine to record how something (such as a heartbeat or an earthquake) changes or happens over time
2traceverb
to draw the outline of (something); especially : to copy (a design or picture) by putting a thin piece of paper that you can see through over it and drawing on top of it
to draw (something, such as letters or a picture) especially in a careful way —often + out
