What's the difference between obstacle and over?

Obstacle


Definition:

  • (v.) That which stands in the way, or opposes; anything that hinders progress; a hindrance; an obstruction, physical or moral.

Example Sentences:

  • (1) Since the first is balked by the obstacle of deficit reduction, emphasis has turned to the second.
  • (2) If women psychiatrists are to fill some of the positions in Departments of Psychiatry, which will fall vacant over the next decade, much more attention must be paid to eliminating or diminishing the multiple obstacles for women who chose a career in academic psychiatry.
  • (3) Counselors who serve pregnant US teens face a number of obstacles in communicating adoption as a positive alternative.
  • (4) A major obstacle to the characterization of the latter two mechanisms has been the lack of suitable model systems expressing only a single nucleoside transport activity.
  • (5) These observations suggest that refractive anomalies such as anisometropia that limit high frequency spatial resolution and binocular integration can present a major obstacle to the postnatal development of binocular vision.
  • (6) The initiation of clinical trials on islet transplantation as a possible therapeutic approach for human diabetes had been blocked by 2 major obstacles.
  • (7) Venous ectasias and varices which can be encountered, associated with DVA constitute an acquired feature in relation to a venous outlet obstacle.
  • (8) Despite these obstacles, new technologies, coupled with educational efforts, should allow the computer to emerge as a crucial aid to clinicians in the decade ahead.
  • (9) Yet experience has disclosed an obstacle to understanding the relationship between cervical cancer and OC use--cervical cancer may be caused by the human papilloma virus transmitted by sexual intercourse.
  • (10) In this paper something is given of their evolution, diversity, aims and activities; and of the important role they now play in many instances, as well as some of the obstacles to collaboration, co-ordination and integration at different levels of operation--internationally, nationally and locally.
  • (11) It is no obstacle to perform pre- and postoperative radio- and chemotherapy.
  • (12) Obstacles to successful treatment include an erratic schedule, mistrust of authority, and uncooperative or aggressive behavior.
  • (13) One of the main obstacles for the introduction of PCR method to identify HIV1 proviral DNA in routine diagnostic laboratories is the use of radiolabelled oligodeoxynucleotide probes.
  • (14) Digital culture has hardly helped, adding revenge porn, trolls and stranger-shaming to the list of uncomfortable modern obstacles.
  • (15) She feared her chances of being offered a place would be diminished by a Brexit vote, and the practical considerations like a visa and funding would be more of an obstacle.
  • (16) It goes without saying that this won't be easy to achieve, and there are many obstacles to be overcome.
  • (17) Armstrong recognised no obstacle to his ambitions – not morality, not the law.
  • (18) Where foreign policy and defence are concerned, Britain’s desire to be taken very seriously is the chief obstacle to it being taken more seriously.
  • (19) The presence of calcifications within the thyroid cartilage is the major obstacle to US imaging of the larynx and is directly related to age; indeed, only 40% of subjects can be examined at the age of 70.
  • (20) Facebook Twitter Pinterest Britain needs to talk about the R-word: racism It is also a wakeup call to those who recognise racism only when it is played out like a scene from Django Unchained , those who think that racism has to be some vulgar incident perpetrated only by the backward, ignorant and poorly educated, those who believe that racism has to be an act, rather than a complicated and intangible framework that sets up obstacles.

Over


Definition:

  • (prep.) Above, or higher than, in place or position, with the idea of covering; -- opposed to under; as, clouds are over our heads; the smoke rises over the city.
  • (prep.) Across; from side to side of; -- implying a passing or moving, either above the substance or thing, or on the surface of it; as, a dog leaps over a stream or a table.
  • (prep.) Upon the surface of, or the whole surface of; hither and thither upon; throughout the whole extent of; as, to wander over the earth; to walk over a field, or over a city.
  • (prep.) Above; -- implying superiority in excellence, dignity, condition, or value; as, the advantages which the Christian world has over the heathen.
  • (prep.) Above in authority or station; -- implying government, direction, care, attention, guard, responsibility, etc.; -- opposed to under.
  • (prep.) Across or during the time of; from beginning to end of; as, to keep anything over night; to keep corn over winter.
  • (prep.) Above the perpendicular height or length of, with an idea of measurement; as, the water, or the depth of water, was over his head, over his shoes.
  • (prep.) Beyond; in excess of; in addition to; more than; as, it cost over five dollars.
  • (prep.) Above, implying superiority after a contest; in spite of; notwithstanding; as, he triumphed over difficulties; the bill was passed over the veto.
  • (adv.) From one side to another; from side to side; across; crosswise; as, a board, or a tree, a foot over, i. e., a foot in diameter.
  • (adv.) From one person or place to another regarded as on the opposite side of a space or barrier; -- used with verbs of motion; as, to sail over to England; to hand over the money; to go over to the enemy.
  • (adv.) Also, with verbs of being: At, or on, the opposite side; as, the boat is over.
  • (adv.) From beginning to end; throughout the course, extent, or expanse of anything; as, to look over accounts, or a stock of goods; a dress covered over with jewels.
  • (adv.) From inside to outside, above or across the brim.
  • (adv.) Beyond a limit; hence, in excessive degree or quantity; superfluously; with repetition; as, to do the whole work over.
  • (adv.) In a manner to bring the under side to or towards the top; as, to turn (one's self) over; to roll a stone over; to turn over the leaves; to tip over a cart.
  • (adv.) At an end; beyond the limit of continuance; completed; finished.
  • (a.) Upper; covering; higher; superior; also, excessive; too much or too great; -- chiefly used in composition; as, overshoes, overcoat, over-garment, overlord, overwork, overhaste.
  • (n.) A certain number of balls (usually four) delivered successively from behind one wicket, after which the ball is bowled from behind the other wicket as many times, the fielders changing places.

Example Sentences: