As nouns the difference between lecturer and forthspeaker

is that lecturer is a person who gives lectures, especially as a profession while forthspeaker is one who speaks forth or makes declaration; an announcer.

As verbs the difference between declare and forthspeak

is that declare is while forthspeak is to speak forth; declare; announce.

As verbs the difference between announce and forthspeak

is that announce is to give public notice, or first notice of; to make known; to publish; to proclaim while forthspeak is to speak forth; declare; announce.

As nouns the difference between ornithopod and hypsilophodontid

is that ornithopod is a type of bipedal, herbivorous, bird-hipped dinosaur from the Cretaceous period, found on all seven continents while hypsilophodontid is an informal grouping of small ornithopod dinosaurs, regarded as fast, herbivorous bipeds on the order of 1–2 meters long (3.3-6.6 feet).

As nouns the difference between dinosaur and hypsilophodontid

is that dinosaur is any of the creatures belonging to the clade dinosauria, especially those that existed during the triassic, jurassic and cretaceous periods and are now extinct while hypsilophodontid is an informal grouping of small ornithopod dinosaurs, regarded as fast, herbivorous bipeds on the order of 1–2 meters long (33-66 feet).

As an adjective herbivorous

is feeding chiefly on plants.

As a noun hypsilophodontid is

an informal grouping of small ornithopod dinosaurs, regarded as fast, herbivorous bipeds on the order of 1–2 meters long (33-66 feet).

As nouns the difference between bipeds and hypsilophodontid

is that bipeds is while hypsilophodontid is an informal grouping of small ornithopod dinosaurs, regarded as fast, herbivorous bipeds on the order of 1–2 meters long (33-66 feet).

As nouns the difference between declaration and forthspeaker

is that declaration is declaration (written or oral indication of a fact, opinion, or belief) while forthspeaker is one who speaks forth or makes declaration; an announcer.

As nouns the difference between time and zeitnot

is that time is while zeitnot is (chess) time trouble, time pressure, a situation where a player has little time to complete the required moves.

As a verb trouble

is .

As a noun zeitnot is

(chess) time trouble, time pressure, a situation where a player has little time to complete the required moves.