4000 Duolingo Vocabulary List

a. demanding much work or care; tedious
When putting together his dictionary of the English language, Doctor Johnson undertook a laborious task.

ad. in a laborious manner;  in a way requiring much labor
I found that rather than laboriously copying out something from a novel by Charles Dickens, it was easier if I made it up myself.

n. maze; the complex structure of interconnecting passages
Michelle, one thing contributing to this labyrinth is the nation's biggest private employer, Wal-Mart.

n. delicate decorative fabric woven in an open web of symmetrical patterns; rope; cord that is drawn through eyelets
When having brought her ironing-table to the nursery hearth, she allowed us to sit about it, and while she got up Mrs. Reed's lace frills and crimped her nightcap borders.

v. delay; drag; the act of slowing down or falling behind
I'm sure you've experienced jet lag before.  

v. grieve; express sorrow; regret deeply
Even advocates of the war lament the loss of so many lives in combat.

n. a protective ornamental shade used to screen a light bulb from direct view
A lampshade is a fixture covering the light bulb on a lamp to diffuse the light it emits.

n. a large continuous extent of land
The research aims to assess Canada's landmass response to climate change as captured by long-term satellite earth observation records.

n. scenery; an expanse of scenery that can be seen in a single view
From palaces to the desert mounds, remnants of this ancient culture litter the landscape.

n. gliding, slipping, or gradual falling; unobserved or imperceptible progress; slip or error; failing in duty
The mayor is apologizing, saying he's deeply sorry for a lapse of judgment.

ad. in a large manner; for the most part; mainly
That happened with James, whose income came largely from the concert.

n. newly hatched, wingless, often wormlike form of many insects before metamorphosis
Everybody knows that the butterfly emerges from the pupa, and the pupa from an entirely different thing called a larva and that from the butterfly's egg.

n. the organ of the neck of mammals involved in breath control, protection of the trachea, and sound production
Can anyone rig up a machine to make somebody's larynx sing after their death?

n. an optical device that produces an intense monochromatic beam of coherent light
What are examples of the laser that are used in health care facilities?

n. any of the short hairs fringing the edge of the eyelid
There were plenty of things to question, but I never batted a lash at that.

a. continuing or remaining for a long time; enduring; durable
It's too early to make any lasting assessment on the careers of these players.

a. present or potential but not evident or active; dormant; hidden
Existing arrangements contain latent functions that can be neither seen nor replaced by the reformer.

a. coming from the side; situated at or extending to the side
In order to get good plant growth, the gardener must pinch off all lateral shoots.

n. freedom to behave, act, or think in the way you want to; angular distance north or south of the earth's equator
Ah, no, a certain latitude is permissible in these matters, you understand.

v. begin; originate; initiate; send off; take off
Four years ago, the country became the third African nation, after South Africa and Algeria, to launch an observation satellite.