Online English Dictionary

present simple, which is used to describe both habits and or routines (I eat breakfast every morning at 6:30. I go to work every day), and general facts or the truth (The earth revolves around the sun);

We use the present simple for thoughts and feelings. (Ex. I think so, I like it.)

In the present simple, we use the verb without an ending. (Ex. I get the lunch ready at one o'clock, usually.) In the third person singular, (after he, she, it, your friend and etc.,) however, the verb ends in -s or -es. (Ex. It gets busy on the weekends. Sarah catches the early train.)



present progressive or present continuous, which is used to describe events happening now, e.g. I am reading this wiki article, and I am thinking about editing it;

The present simple tense is very often used with adverbs of repeated time. Look at these examples (the adverbs are shown in bold): - I always come to school by cycle. - She frequently arrives here before me. - He never forgets to do his homework. - I often catch the late bus home.

When we want to state a fact or ask a question without any time reference, we use the present simple tense. - I live in Frankfurt. - She plays football but she does not play tennis. - For breakfast, he eats rice and drinks cold milk.

Statements about rules of nature and the way the world is are in the present simple tense. - The sun sets in the West. - Most babies learn to speak when they are about two years old. - Water boils at 100° Celsius.

Present perfect progressive, which is used to describe events or actions that have begun at some point in the past and continue through the present, e.g. I have been reading this article for some time now.

The conjugation of the present indicative tense in regular verbs is as follows:

to walk
I walk
you walk
he/she/it walks
we walk
they walk

(source:wikipedia)


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"noun"

(technical) in or behind the stern (= back end) of a ship


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"Noun"

a frame with small balls which slide along wires. It is used as a tool or toy for counting.‹ WORD ORIGINŠ WORD ORIGIN abacus late Middle English (denoting a board strewn with sand on which to draw figures): from Latin, from Greek abax, abak- slab, drawing board, of Semitic origin; probably related to Hebrew 'āḇāq dust.


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"adverb"

be taken a'back (by sb/sth)to be shocked or surprised by sb/sth:
She was completely taken aback by his anger.


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A (noun) - symbol, abbreviation "noun"

indefinite article The form "a" is used before consonant sounds and the form an before vowel sounds. When saying abbreviations like ‘FM’ or ‘UN’, use a or an according to how the first letter is said. For example, F is a consonant, but begins with the sound / e / and so you say:an FM radio. U is a vowel but begins with / j / and so you say: a UN declaration.1used before countable or singular nouns referring to people or things that have not already been mentioned:
a man / horse / unit Ç an aunt / egg / hour / x-ray