| Vocabulary Words | Meanings |
|---|---|
| o’clock | the time by the clock |
| o.k. | all right |
| oak | a kind of tree that can grow very big and lives to a very old age. It has acorns as its fruit. |
| oar | a long piece of wood with one flat end, used to row a boat |
| oasis | a place in a desert where plants and trees grow because there is water |
| oath | a solemn promise that you will speak the truth or keep your word |
| oats | a kind of grain used mostly to feed animals. Oats are also grown up and cooked with water to make porridge. |
| obedience | doing as you are told |
| obey | to do as you are told |
| obituary | an account of a deceased person or persons, list of the death |
| object | a thing; something you can see or handle. The same word also means to disagree with someone else’s idea |
| objection | adverse reason against, act of objecting |
| oblong | a squared shape with four straight sides. Two opposite sides are of equal length and the other sides are also equal but longer or shorter than the first two |
| obnonxious | unpopular, hateful, offensive, odious |
| obscence | indecent, offensive to chastity and delicacy |
| obscure | darkened, din, vague |
| observe | to watch carefully; to notice |
| obstacle | anything that stands in the way so that you cannot go forward |
| obtain | another word for get |
| obtinate | wanting your own way; stubborn another word for get |
| occasion | a particular event or happening |
| occupation | the kind of work that you do |
| occupy | to live in, as when a family occupies a house. the same word also means to go into enemy land in wartime and take over towns and cities. |
| occur | to happen |
| occurrence | any incident, accidental event |
| ocean | a very big sea |
| octopus | a sea creature with eight arms covered with suckers |
| odd | strange; queer. The same word also means not even in number(1,3,5,7,9 are odd numbers) |
| odour | smell |
| offence | a crime. The same word also means something that hurts someone’s feelings or makes him angry |
| offend | to do something wrong; to displease; to make someone angry |
| offensive | causing hurt; unpleasant |
| offer | to say you will do or give something |
| office | a building or room where people work with business papers |
| officer | someone who commands others, as in the army, navy or air force |
| official | pertaining to an office of public duty, in the capacity of an officer holding the office |
| officious | troublesome in trying to serve, intermeddling |
| often | many times; happening over and over again |
| oil | a thick greasy liquid which can come from animals or plants, or from under the ground |
| ointment | a soothing paste you put on sores or cuts |
| old | having been alive or on earth for a long time |
| old-fashioned | of times long ago; not modern |
| olden | long ago, as when we say in olden days or in olden times |
| older | having lived longer than someone else, or existed longer than something else |
| omelette | eggs beaten up, fried until the mixture is almost solid, and then folded over |
| omit | to leave out; not to do something |
| once | for one time only; at a time long ago |
| onion | a bulb-like vegetable with a strong smell and flavour |
| only | single; one and no more |
| open | not shut; able to let things through |
Modal auxiliaries Vs Primary auxiliaries
Primary auxiliaries are be, do, have. They are used to form tenses and to frame short answers.
Modal auxiliaries are will, would, may, might, shall, should, can, could, must, dare, need, used, ought. They are used to express moods.