ladder (Hebrew #5551)

Genesis
28:12   And he dreamed
chalam (Hebrew #2492)
properly, to bind firmly, i.e. (by implication) to be (causatively to make) plump; also (through the figurative sense of dumbness) to dream
KJV usage: (cause to) dream(-er), be in good liking, recover.
Pronounce: khaw-lam'
Origin: a primitive root
, and behold a ladder
cullam (Hebrew #5551)
a stair-case
KJV usage: ladder.
Pronounce: sool-lawm'
Origin: from 5549
set up
natsab (Hebrew #5324)
to station, in various applications (literally or figuratively)
KJV usage: appointed, deputy, erect, establish, X Huzzah (by mistake for a proper name), lay, officer, pillar, present, rear up, set (over, up), settle, sharpen, establish, (make to) stand(-ing, still, up, upright), best state.
Pronounce: naw-tsab'
Origin: a prim root
on the earth
'erets (Hebrew #776)
the earth (at large, or partitively a land)
KJV usage: X common, country, earth, field, ground, land, X natins, way, + wilderness, world.
Pronounce: eh'-rets
Origin: from an unused root probably meaning to be firm
, and the top of it
ro'sh (Hebrew #7218)
the head (as most easily shaken), whether literal or figurative (in many applications, of place, time, rank, itc.)
KJV usage: band, beginning, captain, chapiter, chief(-est place, man, things), company, end, X every (man), excellent, first, forefront, ((be-))head, height, (on) high(-est part, (priest)), X lead, X poor, principal, ruler, sum, top.
Pronounce: roshe
Origin: from an unused root apparently meaning to shake
reached
naga` (Hebrew #5060)
properly, to touch, i.e. lay the hand upon (for any purpose; euphem., to lie with a woman); by implication, to reach (figuratively, to arrive, acquire); violently, to strike (punish, defeat, destroy, etc.)
KJV usage: beat, (X be able to) bring (down), cast, come (nigh), draw near (nigh), get up, happen, join, near, plague, reach (up), smite, strike, touch.
Pronounce: naw-gah'
Origin: a primitive root
to heaven
shamayim (Hebrew #8064)
from an unused root meaning to be lofty; the sky (as aloft; the dual perhaps alluding to the visible arch in which the clouds move, as well as to the higher ether where the celestial bodies revolve)
KJV usage: air, X astrologer, heaven(-s).
Pronounce: shaw-mah'-yim
Origin: dual of an unused singular shameh {shaw-meh'}
: and behold the angels
mal'ak (Hebrew #4397)
a messenger; specifically, of God, i.e. an angel (also a prophet, priest or teacher)
KJV usage: ambassador, angel, king, messenger.
Pronounce: mal-awk'
Origin: from an unused root meaning to despatch as a deputy
of God
'elohiym (Hebrew #430)
gods in the ordinary sense; but specifically used (in the plural thus, especially with the article) of the supreme God; occasionally applied by way of deference to magistrates; and sometimes as a superlative
KJV usage: angels, X exceeding, God (gods)(-dess, -ly), X (very) great, judges, X mighty.
Pronounce: el-o-heem'
Origin: plural of 433
ascending
`alah (Hebrew #5927)
to ascend, intransitively (be high) or actively (mount); used in a great variety of senses, primary and secondary, literal and figurative (as follow)
KJV usage: arise (up), (cause to) ascend up, at once, break (the day) (up), bring (up), (cause to) burn, carry up, cast up, + shew, climb (up), (cause to, make to) come (up), cut off, dawn, depart, exalt, excel, fall, fetch up, get up, (make to) go (away, up); grow (over) increase, lay, leap, levy, lift (self) up, light, (make) up, X mention, mount up, offer, make to pay, + perfect, prefer, put (on), raise, recover, restore, (make to) rise (up), scale, set (up), shoot forth (up), (begin to) spring (up), stir up, take away (up), work.
Pronounce: aw-law'
Origin: a primitive root
and descending
yarad (Hebrew #3381)
a primitive root; to descend (literally, to go downwards; or conventionally to a lower region, as the shore, a boundary, the enemy, etc.; or figuratively, to fall); causatively, to bring down (in all the above applications): --X abundantly, bring down, carry down, cast down, (cause to) come(-ing) down, fall (down), get down, go(-ing) down(-ward), hang down, X indeed, let down, light (down), put down (off), (cause to, let) run down, sink, subdue, take down.
Pronounce: yaw-rad'
on it.