marker

As nouns the difference between milestone and marker

is that milestone is a stone milepost (or by extension in other materials), one of a series of numbered markers placed along a road at regular intervals, typically at the side of the road or in a median while marker is an object used to mark a location.

As verbs the difference between milestone and marker

is that milestone is to place milestones along (a road, etc.) while marker is to mark or write on (something) using a marker.

As verbs the difference between buoy and marker

is that buoy is to keep afloat or aloft; used with up while marker is .

As a noun buoy

is (nautical) a float moored in water to mark a location, warn of danger, or indicate a navigational channel.

As a verb marker

is .

As an adjective commaless is

without a comma (punctuation mark).

As a verb marker

is .

As a noun taggant is

that which serves as a tag, such as an identification microchip or a chemical or physical marker.

As a verb marker

is .

As a noun polyconjugate is

(biology) a fluorescent marker or enzyme used to detect multiple antibodies.

As a verb marker

is .

As a noun barcoding is

the assignment of a barcode to a product and the printing of the barcode on the product.

As nouns the difference between marker and isotype

is that marker is an object used to mark a location while isotype is a marker corresponding to an antigen found in all members of a subclass of a specific class of immunoglobulins.

As a verb marker

is to mark or write on (something) using a marker.