air; unstressed th
er]
| 1. | a form of the possessive case of they used as an attributive adjective, before a noun: their home; their rights as citizens; their departure for Rome. |
| 2. | (used after an indefinite singular antecedent in place of the definite masculine form his or the definite feminine form her): Someone left their book on the table. Did everyone bring their lunch? |
pronoun, nominative he, possessive his, objective him; plural nominative they, possessive their or theirs, objective them; noun, plural hes; adjective | 1. | the male person or animal being discussed or last mentioned; that male. |
| 2. | anyone (without reference to sex); that person: He who hesitates is lost. |
| 3. | any male person or animal; a man: hes and shes. |
| 4. | male (usually used in combination): a he-goat. |

pronoun, nominative it, possessive its or (Obsolete or Dialect
) it, objective it; plural nominative they, possessive their or theirs, objective them; noun | 1. | (used to represent an inanimate thing understood, previously mentioned, about to be mentioned, or present in the immediate context): It has whitewall tires and red upholstery. You can't tell a book by its cover. |
| 2. | (used to represent a person or animal understood, previously mentioned, or about to be mentioned whose gender is unknown or disregarded): It was the largest ever caught off the Florida coast. Who was it? It was John. The horse had its saddle on. |
| 3. | (used to represent a group understood or previously mentioned): The judge told the jury it must decide two issues. |
| 4. | (used to represent a concept or abstract idea understood or previously stated): It all started with Adam and Eve. He has been taught to believe it all his life. |
| 5. | (used to represent an action or activity understood, previously mentioned, or about to be mentioned): Since you don't like it, you don't have to go skiing. |
| 6. | (used as the impersonal subject of the verb to be, esp. to refer to time, distance, or the weather): It is six o'clock. It is five miles to town. It was foggy. |
| 7. | (used in statements expressing an action, condition, fact, circumstance, or situation without reference to an agent): If it weren't for Edna, I wouldn't go. |
| 8. | (used in referring to something as the origin or cause of pain, pleasure, etc.): Where does it hurt? It looks bad for the candidate. |
| 9. | (used in referring to a source not specifically named or described): It is said that love is blind. |
| 10. | (used in referring to the general state of affairs; circumstances, fate, or life in general): How's it going with you? |
| 11. | (used as an anticipatory subject or object to make a sentence more eloquent or suspenseful or to shift emphasis): It is necessary that you do your duty. It was a gun that he was carrying. |
| 12. | Informal. (used instead of the pronoun its before a gerund): It having rained for only one hour didn't help the crops. |
| 13. | (in children's games) the player called upon to perform some task, as, in tag, the one who must catch the other players. |
| 14. | Slang.
|
| 15. | get with it, Slang. to become active or interested: He was warned to get with it or resign. |
| 16. | have it, Informal.
|
| 17. | with it, Slang.
|
pronoun, singular nominative she, possessive her or hers, objective her; plural nominative they, possessive their or theirs, objective them; noun, plural shes.| 1. | the female person or animal being discussed or last mentioned; that female. |
| 2. | the woman: She who listens learns. |
| 3. | anything considered, as by personification, to be feminine: spring, with all the memories she conjures up. |
| 4. | a female person or animal. |
| 5. | an object or device considered as female or feminine. |
ey]
,| 1. | nominative plural of he, she, and it. |
| 2. | people in general: They say he's rich. |
| 3. | (used with an indefinite singular antecedent in place of the definite masculine he or the definite feminine she): Whoever is of voting age, whether they are interested in politics or not, should vote. |
their (thâr) adj. The possessive form of they.
[Middle English, from Old Norse theira, theirs; see to- in Indo-European roots.] |
| case | SINGULAR | - | - | PLURAL |
| - | masc. | neut. | fem. | (all genders) |
| nom. | he | hit | heo, hio | hie, hi |
| acc. | hine | hit | hie, hi | hie, hi |
| gen. | his | his | hire | hira, heora |
| dat. | him | him | hire | him, heom |
He
The symbol for the element helium.
| helium (hē'lē-əm) Pronunciation Key
Symbol He A very lightweight, colorless, odorless element in the noble gas group. Helium occurs in natural gas, in radioactive ores, and in small amounts in the atmosphere. It has the lowest boiling point of any substance and is the second most abundant element in the universe. Helium is used to provide lift for balloons and blimps and to create artificial air that will not react chemically. Atomic number 2; atomic weight 4.0026; boiling point -268.9°C; density at 0°C 0.1785 gram per liter. See Periodic Table. Our Living Language : The second most abundant element in the universe after hydrogen, Helium (symbol He) is a colorless, odorless, nonmetallic gas that is produced abundantly by the nuclear fusion in all stars and is found in smaller amounts on Earth. It was discovered by the British scientist—and founding editor of the journal Nature—Joseph Norman Lockyer in 1868, while he was studying a solar eclipse with a spectroscope, an instrument that breaks light up into a spectrum. If an element is heated up enough to glow, the emitted light produces a unique spectrum when refracted through a prism. Lockyer noticed that the spectrum of the Sun's corona, which is visible only during a solar eclipse, contained lines produced by an unknown element. He named the element helium from helios, the Greek word for "sun." Helios gives us many other words pertaining to the Sun, such as heliocentric and perihelion. |