| 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 |
Tenses
The verb shows time by changing its form. These forms are called tenses.