WordNet

vary or move from a fixed point or course; "stock prices are drifting higher"
a force that moves something along (同)impetus, impulsion
a process of linguistic change over a period of time
the gradual departure from an intended course due to external influences (as a ship or plane)
a horizontal (or nearly horizontal) passageway in a mine; "they dug a drift parallel with the vein" (同)heading, gallery
the pervading meaning or tenor; "caught the general drift of the conversation" (同)purport
a general tendency to change (as of opinion); "not openly liberal but that is the trend of the book"; "a broad movement of the electorate to the right" (同)trend, movement
a large mass of material that is heaped up by the wind or by water currents
be piled up in banks or heaps by the force of wind or a current; "snow drifting several feet high"; "sand drifting like snow"
be subject to fluctuation; "The stock market drifted upward"
cause to be carried by a current; "drift the boats downstream"
drive slowly and far afield for grazing; "drift the cattle herds westwards"
move in an unhurried fashion; "The unknown young man drifted among the invited guests"

PrepTutorEJDIC

〈U〉『漂流』,流されること / 〈U〉(海流・風などの)流れ,流れの方向(速度) / 〈C〉(雪・砂などの)吹きだまり,漂流物《+『of』+『名』》 / 〈U〉〈C〉大勢,風潮,傾向 / 〈U〉《時にa~》主意,主旨 / (水・風に)『流される』,漂う,漂流する / あてもなくさまよう / 〈雪・砂などが〉吹き積もる,吹きだまりになる / 〈砂・雪など〉‘を'吹き寄せる;〈場所〉‘を'吹きだまりにする